books-library.online · M cGraw-Hill Edu cation X! S DVC X vI ' © oP R Èé m E È ãvJ Ë...
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Transcript of books-library.online · M cGraw-Hill Edu cation X! S DVC X vI ' © oP R Èé m E È ãvJ Ë...
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1232, 3, 71, 2, 3, 6, 72, 3, 4, 6
Distributive Property
LA
•2 •
•
•2 •
*
11
*13
9
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487A
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451, 2, 3, 6, 72, 3, 4, 6
Associative Property of Multiplication
expression operations
Venn LALA
• 4 •
•
• 4 •
• 5 •
•
• 5 •
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487B
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672, 3, 4, 6, 71, 2, 4, 6
variable evaluateequation
LALA
• 6 •
•
• 6 •
• 7 •
•
• 7 •
*
11
*13
9
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487C
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891, 3, 4, 51, 2, 4, 5
LALA
• 8 •
•
• 8 •
• 9 •
•
• 9 •
•
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2
•
•
5 × 73 + 4 7
43
55 +
5 × 7 = (5 × 3) + (5 × 4)
= 15 + 20
= 35
•
9 55 × 9 = 5 × (4 + 5) 9 4 + 5
= (5 × 4) + (5 × 5)
= 20 + 25
= 45
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…
…
…
•
•
•
43 2
3 × (2 × 4)
2 4 3 × 8
3 8 24
•
•
n = 10 n - 3 × 2
n10
32
10 6
•
•
•
•
n 1423
14 + 3 × n = 23
487F 9
•
•
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487–488 9
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•
•
•
"! " 9
" "
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.1
.2
.3 .4
.5 .6 .7
.8
.1
.2
.3 .4
.7
=
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UAE_Math Grade 3_Vol 1_TE_718597_ch9.indb 488 12/14/2016 7:39:19 AM
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9 489
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1–7
8
9–10
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1 2 3 4 5 6 7 8 9 10
1. 8 + � = 11 2. � × 5 = 20 3. 36 ÷ 6 = �
4. 5. 6.
.8 .76 + 5 = 5 + 6 36 = � + 15 + 12
12
15
�
AED 20 .10 .9AED 15 15
3
9
9
4
3
6
6
7 8AED 20 + AED 15 = � ; AED 35
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489A 9
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21
6 4" •
"
•1 6
2 1
3 2•
" "
•
•" "
" " •
1•
•" "
" " •
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9 490–492
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m�
" "
=
3
7 × 2
•
•
4 × 1 × 3 = 4 × 1 × 3
72 + 5
12/13/2016 10:42:08 PM
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9–6
9–5 9–5
9–6 9–7
9–2 9–4
3 × 2 × 4 = 3 × 2 × 4
3 × 8 = 6 × 424 = 24
4
6 2
3 = 7 ÷ 21 15 + 914 - 7 × 5 = ?
7 × 5 = 35
- +
÷ ×
6 + 2 +
4 × 8 = 4 × 6 + 4 × 2
y × 2 = 8
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unknown known fact equals sign = decompose array
4 × 7 = �
2 × 7 = 142 × 7 = 14
7
4
7
7
2
2
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6 5 3 2
array •
decompose •
equals sign (=) = •
known fact •
unknown •
4
(4 × 1) × 3 = 4 × (1 × 3)
2 + 5 7
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1
2
3
×=
×
2 × 4 = 2×3 + 2×1
=
+
+
=
15 =15
3
5
2
42
23
1
3
5
=
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© ×=
× =
1×2 × 3 =
1 × 2×3 =
8
16
23
6
6
62
3
355
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7
•
•
•
1 •
•
•
•
1 2 •2
3 •
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11
4
48 4
212
12 + 12 448 + 12 + 12
LA
2 3 7
11–12 2
1 0
1100
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6 × 96 × 9
5 + 4 930 6 × 5
30 + 24 = 54 54 6 × 9 24 6 × 4
1-31
3
•
304 × 7
4 × 77 7
20 4 × 5 2 + 528 20 + 8 8 4 × 2
(4 × 5) + (4 × 2) 3
4 × 7(4 × 4) + (4 × 3) 4 × 7
4 × 7 = 28 16 + 12 = 28 4 × 3 = 12 4 × 4 = 16
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1
4 × 7
4 × 7
4 × 7
7 •
+ 5 7 •
5
4 4
2+
4 × 7 = 4 × 5 + 4 × 2
= +
= 28
4 × 7 =
20
28
8
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96
6 × 9
6 × 9
5 4 9
6 × 9 =
6
945
5
3 .1
9 6
.2
.3
6 × 9 = 6 × + 6 ×
= +
=
30
5 4
54
1 3
24
54 54
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9 497–498
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••
4–5
6
7
8–10
2
11
819 × 9 81
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4. 5.
7 × 6 = 7 × + 7 × 8 × 7 = 8 × + 8 ×
= + = +
= =
.6
7 × 9 = 7 × + 7 ×
= +
=
.7
7 × 9 = 7 × + 7 ×
= +
=
4–7
3
5
3
4
21
35
21
3221
28
42
24
42
63
63
56
3
4
6
3
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7
9 8 8
6 .99
.10
8 2 .1181
.12
72
54
32
8 9
9 × 9 = 81
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7
53 × 9 (3 × 5) + (3 × 4) 3 × 9
15 + 12 = 27 =
4 × 8
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1
1. 2.
7 × 7 = 7 × + 7 × 6 × 8 = 6 × + 6 ×
= + = +
= =
4 × 9
4 × 9
4 5 95 4
4 4
+4 × 9 = 4 × 5 + 4 × 4
= 20 + 16
= 36
4 × 9 = 36
9
4
5 52 3
, 2
35
49
30
48
14 18
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3. 8 × 8 = 8 × + 8 × 4. 5 × 7 = 5 × + 5 ×
= + = +
= =
8 × 8 = 8 × + 8 × 5 × 7 = 5 × + 5 ×
= + = +
= =
7 .59 3
.65
2 .7 4
3, 4
40
32
64
64
27
25
48
25
15
35
35
24
32
10
20
5
4
5
3
3
4
2
4
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22
1 2 3 6 7
Distributive Property
•
•
2 •
" " " "
3-10
LA
1-2 13–10 211–15 3
1 0
1100
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501B 2
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9 46
AED 3 6 AED 18
2
36 ÷ 6 = 6 4 × 9 = 36AED 18 ÷ 6 = AED 3
8 9
9 × 8
4 9
9 × 8 = 9 × 4 + 9 × 4
9 8 94 9 4
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1
6 88 × 6
6 65 + 1
6 3
5 6 4 + 2, 3 + 3+ 1
1 5
48 40 + 8 8 8 × 1 40 8 × 548
2
7 77 × 7 =
5 + 2 77 × 5
35 7 × 5 7 × 2 49 35 + 14 14 7 × 2
49
7 × 3 + 7 × 4 7 × 7 2
49 7 × 3 + 7 × 4
" "
6
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2
1
6 8
8 × 6
5+ 1 6
8
6 5 + 1
8 8
8 × 6 = 8 × 5) + 8 × 1
= 40 +
=
= 8 × 6
48
48 48
8
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8 × 3 = × + × .1
= +
=
8 × 8 = × + × .2
= +
=
2
7
77 × 7
5 + 2 7
5
7
2
7 × 7 = × + ×
= +
=
49
5
35
49
14
27 7
1 , 2
24
64
5
3
15
24
3
5
3
8
9
40
3
8
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14–15 11 3–6 • 11–15 3–9 •
7–15 •
117
7
1112 × 5
60 = 30 + 30 6 × 5 + 6 × 5
1
36 14
LA
15
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3. 4 × 6 = 4. 6 × 6 =
5. 8 × 9 = 6. 10 × 4 =
7. 12 × 4 = 8. 11 × 8 =
9. 10 × 10 = 10. 12 × 60 =
24
72
48
100
88
72
40
36
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7 .1112
9 .12
12 =
6 10 .137
12 1 .143
60
63
112
72
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LA
9 505A
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1 2
99
93 6
9
3 × 12, 11 × 6, 10 × 9
8 × 6 = 8 × 5 + 8 × 19 × 7 = × 7 + × 7
9
98 × 5 = × 5 + × 5
8
3–10
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7
66 × 8 + 6 × 8 12 × 8
96 = 48 + 48
AL
8
4 × 12 2 × 12 AB
4 × 12 6 × 6 C4 × 12 4 × 11 D
6 × 9
54 6 × 9
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© 4 × 12 .9
A 2 × 6 + 2 × 6) C 4 × 6 + 2 × 6
B 4 × 10 + 4 × 2) D 4 × 8 + 4 × 3
5 × 9 .8
3. 5 × 11 = 4. 12 × 7 =
6 4 .5
8 7 .612 = 1
8 6 .7
55 84
24
96
48
5 + 4 9
5 × 5 + 5 × 4 = 25 + 20 = 45
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2
1. 4 × 9 = 2. 5 × 6 =
7 6
6 × 7
5 + 2 7
6 × 7 = 6 × 5 + 6 × 2
= 30 + 12
= 42
3 + 4 7
6 × 7 = 6 × 3 + 6 × 4
= 18 + 24
= 42
6 × 7 = 42
42
5
3
2
4
+
+
6
6
36 30
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33
AED 5AED 12
4 AED 735
4 × AED 12 = AED 48, 5 × AED 5 = AED 25, AED 48 + AED 25 = AED 73
6
4 × AED 12 4 × AED 6 + 4 × AED 6 = AED 24 + AED 24 = AED 48
LA
2 3 4 6
11–24 2
1 0
1100
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507–508 3
2 .1
.2
.3
2 × (3 × 3)
2 × (3 × 3)
2 × (3 × 3) =
3 3
3 × 3 ×
18
18
1 3
3 3
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2 × 3 × 3
" "3 × 3
23 × 3
3 × 3
3 × 318
18 2 9 2 9 3 × 32 × 3 × 3 = 18
1-31
2
•
2 × 3 × 3
4
2 × 3 2 × 3
2 × 3 32 × 3
32 × 3
18
18 6 × 3 3 6 2 × 32 × 3 × 3 = 18
3
(2 × 3) × 3
(2 × 3) × 3
2 × 3 × ×
(2 × 3) × 3 =
3
18
2 23 3
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9 509–510
2 .193 3
AED 5
5 .20
5 .21
3 4 .22
3 .23
4 × (2 × 2)
3 × (2 × 2) .24(3 × 2) × 2
AED 45
20
30
24
3 × 4 2 × 2
6 × 2 3 × 2
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13-18
2
19
3 × 3 × AED 5
3
232 × 4 × 4
4. 3 × (2 × 2) = 5. 1 × (4 × 2) = 6. (5 × 2) × 2 =
7. (5 × 1) × 3 = 8. 4 × (2 × 3) = 9. (3 × 3) × 3 =
10. (4 × 3) × 2 = 11. (4 × 1) × 5 = 12. (4 × 2) × 2 =
13. (3 × 2) × 4= 3 × (2 × )
= ×
=
14. (2 × 2) × 4 = 2 × ( × )
= ×
=
15. 5 × (2 × 3) = ( × ) ×
= ×
=
16. (4 × 2) × 3 = 4 × ( × )
= ×
=
17. (3 × 3) × 2 = 3 × ( × )
= ×
=
18. (4 × 3) × 3 = 4 × ( × )
= ×
=
12 8 20
15
24
24
20
27
16
5 2 3
10 3
30
3 2
3 6
18
2 3
4 6
24
2 4
2 8
16
3 3
4 9
36
4
83
24
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UAE_Math Grade 3_Vol 1_TE_718597_ch9.indb 510 12/14/2016 7:39:58 AM
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511–512 3
3. (6 × 1) × 3 = 4. 3 × (5 × 2) =
5. (4 × 1) × 2= 4 × (1 × ) 6. (2 × 6) × 2= 2 × ( × )
= 4 × = 2 ×
= =
7. 3 × (5 × 1) = ( × ) × 1 8. (4 × 5) × 2 = 4 × ( × )
= × 1 = 4 ×
= =
2 .95
3
.10 3
.11 3 3
33
6 2
12
24
5 2
10
40
3 5
15
15
18 30
2
2
8
30
27
24
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2
95 × 3 × 2 = 5 × 6 = 30
5 × 4 × 2
20 4 540 4 5
4 5
•
24
••
24 •2 × 4 3
2 × 4 3
3 × 2 × 4 = 24
24
3
1. (3 × 1) × 2 = 2. (2 × 2) × 5 =
4
(2 × 2) × 4
4 16 (2 × 2) × 4 = 16
2 × (2 × 4)
16
2
4
(2 × 2) × 4
4 × 4
16
2 × (2 × 4)
2 × 8
16
6 20
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44
1 2 3 6 7
1–5 16–17 2
18–22 3
Associative Property of Multiplication
•
6 •2 1
•
AL
1008 x 5 = 40
40 ÷ 5 = 8
1100
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513B 4
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275, 997, 31, 3786, 42
7
2 × 4
2 × 4 = 82 × 4
2 × 4
8 2 × 4
24 2 × 4
2 × 43 × 2 × 4 = 24
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1
�2 × 3 × 4
24 6 × 4 6 2 × 33 2
6 2 × 3 2 × 3 × 4 = �24 24 6 × 4
12 3 × 4 2 × 3 × 4 = � 4 324 24 2 × 12
2 × 3 × 4 = 24
2
2 × 4 × 324
2
10 2 × 5 2 × 53 3 30 10
3
2
" "
6
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1. 2 × 4 × 6 = ( × ) × 2. 4 × 2 × 3 = × ( × )
= × = ×
= =
.3
� × (2 × 3) = 30
� × =
× =
25
30
2 × 5 × � = 30
2 × 5
(2 × 5) × � = 30
10 × � = 30
10 × = 30
2 × 5 × 3 =
30 10
3
30
6
65
5
30
30
2
8
48
6
4 6
3
4
4
24
6
2 3
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4
14
3
2 × 3 × 4 = �
3 24 3
(2 × 3) × 4 = �
6 × 4 = �
2 × (3 × 4) = �
2 × 12 = �
2 × 3 × 4 =
24
24
24
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21–22 18 12–13 8 4–5 • 18–22 4–16 •
10–22 •
8–11
1
18
5 × 2 × 4 = 40
3
21
LA
22
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5 1 .18
4
4 .19
.20 10 4
3 .21
.22(3 × 4) × 2
(2 × 3) × 3 = 2 × (3 × 3)
4 × (4 × 2) = (3 × 4) × 4
3 × (1 × 5) = (3 × 1) × 5
6 × (4 × 2) = (6 × 4) × 2
40
16
80
21, 22
32 = 48
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8. (3 × �) × 4 = 24 9. (6 × �) × 5 = 30
10. � × (3 × 3) = 27 11. (2 × 5) × � = 20
12. (6 × 1) × = 13. 4 × ( × 2) =
14. × ( × 5) = 15. (6 × ) × 3 =
16. × (3 × ) = 17. (5 × ) × = = 2
= 3
= 4
4 1 3
4 3
12
24 12
2 3 3
2 9
18
2 1
3 2
12
40
36
24
36
30
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LA
9 517A
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1 2
0-5
33 × 4 × 2 = × 4 × 2 =
3 × 4 × 2 = 3 × 4 × 23 × 8 = 8 × 3
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517–518 4
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2
7
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LA
3 × 7 A3 × 3 3 × 7 B
7 3 + 3 CD
4 × 2 × 74 × 14 14 2 × 7
56 8 × 7 8 4 × 2 4 × 2 × 7
4 × 2 × 7 4 × 2 × 7
3 × 3 × 7 = � .11
A 21 C 42
B 30 D 63
3. 4 × � × 4 = 32 4. 2 × � × 6 = 60
5. 5 × � × 1 = 45 6. � × 4 × 2 = 48
4 2 .7AED 2 6
3 .8 6
5 .9 3
.10
2 5
9 6
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36
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4
1. 2 × 3 × 6 = 2. 5 × 2 × 2 =
5 4
2 × 4 × 5
4 25 4
40
40
2 × 4 × 5
8 × 5
40
2 × 4 × 5
2 × 20
40
2036
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9 519–520
3 .156
4 .163
3 .173
17 C 15 A
18 D 16 B
7. 3 × 4 × 2 = 8. 2 × 3 × 2 = 9. 5 × 2 × 1 =
10. 2 × 3 × 3 = 11. 4 × 2 × 3 = 12. 3 × 2 × 3 =
13. 4 × � × 3 = 24
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14. 3 × � × 3 = 27
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2 × 3 × 4 = 24
4. 2 × 3 × 4
6 × 4 = 24
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1-4
5–61–2
7–143–4
3 2 A B C D
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1 2
6•
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5 3•
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•" "
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55
2 3 4 6
expression
operations
•
•
3 •
3-13
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3–16 217–21 3
100
40 ÷ 5 = 8 8 5 = 40
1100
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30 × 9 24216, 308, 243, 341, 803, 423
30 × 9 = 270 243; 2 × 4 × 3 = 24; 243 243 < 270
2
8 3 5
2 31
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1
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4
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+
5 8 .1
2
6 + 3 -
33
× 2 + 1
3
3
2
8 - 55 8
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20–21 17 3–13 • 17–21 4–16 •
17–21 9–15 •
3–16
4
17–19
3
20
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21
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18 .5AED 21 3 .6
80 89 .7 6 .8 6
6
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10
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18 ÷ 2AED 21 ÷ 3
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6 ÷ 2
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10 ÷ 90
6 × 6
10 + 95 + 89
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4
9 6 .17
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1617
1215
14 1226
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- AED 22
20, 21
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LA
9 525A
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1 2
572
÷ × - +
7 + 349 ÷ 7
3-8, 9-1314-16
17-19
2 1
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4
6–8
7
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•
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5
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47 58 .3 4 .2
10 30 .5 12 5 .4
4
5 .6
4 8 .7
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4 × 258 - 47
12 + 530 ÷ 10
5 - 1
8 + 4
+ 1
C
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66
2 3 4 6 7
evaluate
variable
6 •
•
2 1 •
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1 " "2
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5–18 219–23 3
1100
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606
620 26 14
6
14 + 26 + 20 = 6020 - 6 = 14 6
20 + 6 = 26 6
3
3 + �
3 + x
X
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1
x 5 + x 5
1 2
5 + x = x + 51 + 5 = 6 x, 5 + 1 = 6 1 5 + x = x + 5
2
10 y y - 6 y10 y
4
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8 2 × 4 2 s11 8 3
3 + 2 × 4 3
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20
15
x
26
y yy = 10
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10 - 6
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6
y
x
4
4
10
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b = 5 a = 2
34
s = 2 3 s
2 s
3 + s × 4 = s = 2
3 + s × 4
3 + 2 × 4
3 + 8
11
3
11
2
5 20
5 5
2
6 4 10
6
11
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5, 7, 9, 16–19, 22–23 • 19–23 5–17 •
19–23 5–15 •
2
19–21
7
22
LA
23
3 y y = 3 5 + 7 × y26 21 5 21 3 7
y = 20 z = 7
g = 2
n = 12
16. n ÷ 4 × 6
12 ÷ 4 × 6
3 × 6 = 18
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12 + 12 ÷ 4
24 ÷ 4 = 6
17 16 .18
17
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2
x AED 10 .19x = AED 5
5 .20 v = 3 v
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7 .222
12 - 4 + 6
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AED 10 + x; AED 10 + AED 5 = AED 15
5 × v ; 5 × 3 = 15
2 × 5 + 3 × 2 = 16
14
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LA
9 531A
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1 2
5 + x5 x = 4
49
k = 6 k + 7k k = 10
k
6 k = 6" 6"
" + 7"
k + 7 = 6 + 7 = 13
AED 5 ""AED 20
p - 5
LL
12 ÷ 4 × 6 L
126
1-411-15
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4
7–9
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" "
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•
•
•
d = 7 c = 4
1. 15 - d 2. 16 + c 3. 35 ÷ d
15 - = 16 + = 35 ÷ =
6
3z
z = 8
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8 ÷ 2 - 3 .8 z
4 - 3
1
y = 6 x = 14
4. x + y ÷ 4 5. x - 2 × 2 6. y + 24 ÷ 2
7 8 4 20 7 5
14 + 6 ÷ 4
20 ÷ 4 = 5
14 - 2 × 2
14 - 4 = 10
6 + 24 ÷ 2
6 + 12 = 18
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4
b 7 .7b = 5
4 .8 y
y = 8
4 × y ; 4 ×
5 .9 ww = 4
× 2;
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.11
h = 16 h + 8 ÷ 4 12
A 20 C 8
B 18 D 6
7 - b ; 7 - 5 =
10, 11
+ 2 8 + 2 = 34
5 + w 5 + 4 × 2 = 18
B
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77
1 2 4 6
equation
•
6 •
•
6–12
LA1–2 1
3–12 213–17 3
1100
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38240 6
40 × 6 = 240 40 38 20240 ÷ 12 = 20 12
1
2 × 3
2 × 3 = 6
2 × 33
2 × 3 33 × 2 × 3 = 18
18
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15
9 45 + 4 = 9
1 4
5 4 5 + 4
2
3
3 23
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2 × 37
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x 3 .1
+ =
2 x 6 .2
- =
2
32 48
b
3
37
w
3
3
6 2
2 x
x
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1
+ =
+ 4 =
=
7
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+ =
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5
5 4 9
4
5 99
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16–17 13 3–9 • 13–17 3–11 •
13–17 6–12 •
2
13–1513
539
4
16n
5 n
LA
17
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.139
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.14
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4
2 .1616 ÷ 2 - 3 = n
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3 + 13 + t = 20
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14 22 .6 y
y 24 .73
4 y 12 .89
5 .9y
10-12
m .10
t .11
n .12
14 - 9 = y
12 - y + 4 = 9
24 ÷ y = 3
5 + 5 × 2 = y
14 - 6 = m
6 + 2 + 7 = t
6 ÷ 2 + 14 = n
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LA
9 537A
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1 2
3 × 53 × 5 = 15
7 7
7 - 3
4
1
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2
9–109
AED 6 AED 10AED 6 AED 10
LA
" "
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5 × n = 30
n = 6 30
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.11
m 5 .6 3 14 .5 30 e
4 32 .8 13 .7 3 c 8
b
2
AED 6 AED 10 .9
15 .10 2
20 3 .12 b
A 3 × 20 - 2 = b C 3 × 20 ÷ 2 = b
B 3 + 20 - 2 = b D 3 + 20 - b = 2
14 ÷ 2 + 3 = e5 × m = 30
13 + 8 + 2 = c
AED 10 - x = AED 6
32
" "
32 ÷ 4 + 3 = b
A
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7
p 4 .2 .s 7 .1
9 s .4 .x 18 .3
x
x
12 - 3 = x
x
12 + 4 + 2 + 3 = x
x
2 × 4 - x = 2
x
12 ÷ 3 = x
12
423
7 + 5 = s4 × 4 = p
18 ÷ 2 = x11 - s = 9
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9 539A
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1 3 4 5
estimate
•
•
1-5
LA 1–2 13–10 211–15 3
1100
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3
3
XX
3 × 4
123 × 4 = 12
5
17
3 × 4 + 5 = 17 .3 × 4
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1
AED37 AED30 + AED7 AED30 5 × AED6
AED6 × 5
2
" "
28 48
8
840
48 - 8 ÷ = 8
5 4
5 14 .1 8
4 .2
8
50 4810 8
10 8
55
5
17 14 - 5 + 8 = b
24 4 × 8 - 8 = p
1,2
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8
1
AED 7 AED 6
5 × AED 6 + AED 7 = y
5 × AED 6 + AED 7 = AED
AED
AED
AED 37 - AED 7 = AED AED 7 AED 37
AED 30 ÷ 5 = AED
AED + AED 7 = AED30 37
37
37
37
306
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3, 6, 8, 11, 13–15 •11–15 4–10 •
15–11 9–3 •
11–12
116 × 6 + r = 43 r + 6 × 6 = 43
7 r
13
14
6
LA
15
1
6 6 .11
43
6 48 .12
5
10 1 .13 20
6 3 .14
.15
7 6 × 6 + r = 43
3 48 ÷ 6 - b = 5
13, 14, 15
11, 12
20 ÷10 = c ; c = 2
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3 .3 AED 8 AED 4
9 .4 15 5
.5
AED 3 AED 10 .6 8
AED 10 - AED 3 × 8 = m AED 10 - AED 3 × 8 = m
8 5 .7 7
6
5 × 8 + 7 = p 5 × 8 + p = 40
8. k - 9 = 9
k =
9. 45 ÷ v = 5
v =
10. 9 + 2 = 12 - q
q =
7
920
m - 3 × AED 4 = AED 8; AED 20
29 9 + 5 + 15 = p
4 20 - 7 + 9 = p
AED 10 - AED 3 × 8 = AED 56
5 × 8 + 7 = 47
18 9 1
3-5
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LA
9 543A
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21
16
1
2
2 × 5 ÷ 2 = 5 × 1
5 = 5
35
15
5 × 3 - 8 = n×
-
n n7 n
9 87 6
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5–8
5-8
LA
Ay 5 B
C8 41 D
10 - 8 × h = 4
h = 2
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1
8 3 .5 6
15 .6
3 8 83 .7
AED 2 6 .8AED 5
4 8 .941 y
A 41 ÷ 5 = y C 4 × 8 + y = 41
B 8 × 4 ÷ 5 = y D 41 ÷ 4 + y = 8
3 × 8 + 6 = p; 3 × 8 + 6 = 30
3 15 ÷ 3 - x = 2; 15 ÷ 3 - 3 = 2
83 - 3 ÷ 8 = s; 83 - 3 ÷ 8 = 10
3 × AED 5 - 6 × AED 2 = c; AED 15 - AED 12 = AED 3
5–8
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8
1. 48 ÷ 6 + m = 11 2. 37 - 9 = h × 4
m = h =
3. 20 + 20 = 4 × w 4. 4 + 2 × r = 54
w = r =
8
8 ÷ 2 + 1 = q
4 + 1 = 5
5 5 8 ÷ 2 + 1 = 5
8 4 5 - 1 = 4
3 7
10 9
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9 545A
99
1 2 4 5
• • • •
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11–4 25–9 3
LA
1100
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545B 9
•
30
306
306
5
3
30 ÷ 6 - 2 = 3
Dh99 7 Dh4
AED63 = AED9 × 7AED45 = AED5 × 9 AED9 - AED4 = AED5
AED63 + AED45 = AED108
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9 545–546
XXX
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1
23
13" " 3 + 5 × 2 = 13
X 3 + 5 × 2
4
1
2
3
4
9
3 + 5 × 2 =
3 + 5 × 2 =
3 × 5 + 2 =
3 + 5 × 213 3 × 5 + 2 2 × 5 + 3
2 × 5 + 3XX
2 × 5 + 3XX
2 + 5 × 3XX
13
1316
17
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547–548 9
•
•••
1 .55 30
11 .63 4
2 .7
20 15 10 5AED 4 20 5
5 8 .8AED 2
1 .9
9
18
12
AED 1
AED 16
18
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9 7 2 5 1 •5–9 3 1 •
5–9 4 2 •
AED1.85 295 AED2.30
530 ÷ 5 = 6
6 × 3 = 18
715 10
990 ÷ 5 = 18 5
.1
2 .2AED 5
8 5 65 6
10
17 .34
3 cm .4138 cm 2 cm
8
136 cm 133 cm
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9 549A
1 2
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AED60
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31-4
1-4
104 11
XX
XX
XX
2
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549–550 9
2
35 45 .150
3 AED 1
.2
21 .3
AED 18 .4
AED 9
AED 10
AED 9
AED 6
AED 3
15
6
6 3
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4
1-4
LA
9
XXX
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9 551–552
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LA
8–91–2
10–113–4
12–135
14–156
16–177
188
2 1 –
9
.1
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.1
.2
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1
1 2
3
5
6
4
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9. 7 × 7 = 8. 7 × 6 =
9. 1 × 3 × 4 = 10. 2 × 5 × 3 =
AED 45 5 114 6 .12
b = 5 a = 4
13. 3 + a
3 + =
14. 20 ÷ b + 5
+ =
7 153
m
3 16m
30
51 178
49
12
AED 45 ÷ 5
7 × 3 - 2 = m
(51 - 27) ÷ 8 = b; 24 ÷ 8 = b; b = 3
2 × 3 × m = 30
16 18
6 × 4
42
30
44 957
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A
B
C
D
18 19
4 18 3 3
4 19
20
3 x 21x = 12
7 A
8 B
9 C
10 D
3 x 5
19, 20
4 × 3 × 3 = d; 36
1 + 4 × 2 = p; 10
McG
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9
AED 8+ 2×AED 5 =n AED 18
6
=
AED 5AED 8
AED 9
6 × AED 8 = y AED 48
McG
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UAE_Math Grade 3_Vol 1_TE_718597_ch9.indb 554 12/14/2016 7:42:06 AM
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