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2007/2008
1
7/25/2019 Math2
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)
(
.
.
:
.
.
.
.
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2
7/25/2019 Math2
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3
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04
)
(
6
1
8
2 .10
3
.12
4
.14
5
0.250.5
0.75166 .18
7
.20
8 .22
9 .24
10 1 000100 .26
11
.28
30
0.10.010.0013212
13 .35
14 .38
15
.40
16
.42
17 .44
18
.46
19
.48
20 .51
21
.53
22
.55
57
23
.59 24 .61
25
.63
4
7/25/2019 Math2
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26 .65
27
.68
28
.71
29
.74.7730
101001 00031 .80
32
.83
33 .85
87
34
.88
35
:
.9036 .93
37 .94
38
.95
39
.97
40 .99
41
.102
42
.10543 .107
44
.109
112
114
5
7/25/2019 Math2
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1.
:................
..............
...............
.........
2.
:
73...............................808..............................
999..............................
1 000............................
3
:
.......................
...........
.........
........
525
535
540
...................................................859847853
4
:
544
128
704
644
303
450
184
.......................
...........
.........
........
.......
........
5
7/25/2019 Math2
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50 21 ) 15 =(
( 50 12 ) + ( 7 5 ) =( 50 21 ) + ( 15 2 ) + 5 =
50 + 21 + 15 =
7
12
100 DA
740 DA
840 DA
1 200 DA
140 DA
8
:
:
:.450
.300
.150
7
7/25/2019 Math2
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:
.
:
1
4
10 DA
6
50 DA
100 DA7
10
1 000 DA
100
1 000 DA2
,
.
999999999
.
8
01
7/25/2019 Math2
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:
10
999999999
1
0000000001 0000000001
00000000001
000000000001
123456789101112
:
10
.3
:
1
4
2
330
,
3
:
.
4
3 200 km
12
9
7/25/2019 Math2
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:
:
:15,153,1 873
:
:20 DA50 DA100 DA200 DA500 DA1 000 DA
3086739
:
. . . . . . . . .
. . .+ . . . + . . . +
. . .. . .. . .
. . . . ..
:
............
10
02
7/25/2019 Math2
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1
:1982 3532 1673 7081 908
2
:
3
DA2501.
950 DA
300 DA
11
7/25/2019 Math2
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:
.
:
:
=19+15
=23+47
17 12 =
:
.
:
1 DA10 DA50 DA100 DA500 DA100 DA
4 5744...2423
...742313
2 695...9......4...
:
:
1 342 = 1 1 000 + 3 100 + 4 10 + 2......+............+.............+..............2 589 =
+...........+.............+.....................3 765 =
12
03
7/25/2019 Math2
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1
20
DA102
20
DA50
3
:
.
.
.
4
:
=5+80+400
=6+108+1004
=7+106+1003+1 0002
13
7/25/2019 Math2
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:
:
:
=10+10=1010
=100+100,=100100
:
999=9+109+1009
=.......7+105+1002+1 0001 =........5+102+1003+1 0004
=........3 000+500+80+3
.....=...1 000+300+30+5
=.........1 000+100+10+1
14
04
7/25/2019 Math2
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1
:
4 7833874
3 005............
9 701............
2
:5+104+1003+1 00011 345 =
.......+..........+..............+............4 921 =
.......+..........+..............+.............9 865 =
3
:
............
........
......................
..........
15
83.........
46 ....5
7/25/2019 Math2
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:
0.25
0.5
0.75
:
:
.....45 + 15 =
.....58 17 =
......6 =21
......7 =42
:
:
18.252518
65.5...... 17.75......
11.25......
:
:
67.25
10.75
36.5
16
05
0.25
0.50.75
7/25/2019 Math2
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1-
:
-2
14.75,14.25,14.5.
3-
:
.....................
3.532.5.....................11.7510.759.75
.......................
6.75
6.56.25
)(-4 :
11.25
10.75 ,9.5
9.75
25.25.........25.75 ,36.5...........36.25
17.75.........17.25 ,31.5.. ..........30.75
17
7/25/2019 Math2
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:
:
:
dm......cm =.....=1m
cm......9 dm =
cm......12 dm =
A,B,C,D
)
( km70
km25
Akm30BCD
A
C
.........km
B
D
...........km
A
D
...........km
1
:
:BA
]AB[
.....cm
CD][
.....cmDC
]FF[
.....cm
FE
2
:)(
][AB
]CD[
]EF[
18
06
7/25/2019 Math2
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1
m35m32
.
25m
40cm
18m
6dm.
2
km70
25km
18km.
19
7/25/2019 Math2
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:
)
(
:
:
10 =100
10 =1 000
100 =1 000
1 000 =1 000
:
5kg
600g7kg
300g4kg
250g
1
:
2
:
3
4
:
20
7
7/25/2019 Math2
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1
:
1kg=.....500g + 350g +
g = 1kg.........200g +
g = 1kg........1 200g -
g = 1kg.......1 500g -
2
:
938kg540kg
20kg
500g
2 350kg
1 780g
3g12 000
:
15500g
10250g
08125g
1
.
2
.
21
7/25/2019 Math2
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:
.
:
.5
:
1514131211109876543210
5
4.9
5.1
:
4.9 < 5< 5.1
6
.
.
...
7/25/2019 Math2
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1
:
7/25/2019 Math2
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:
:
15
:
7.5
8.7
87< 7.5
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1
:
43
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:
100,1 000
:
10,10
0
100
:
100,100
1 200
1 000,1 000
10 000
1
:
0100......400..................
01 000...3 000..................
100
1 000
100
.100
1 000
.1 000
:
6 = ..100,5 = 5 0001 000
8 = ..100,8 = .....1 000
700=......7,6 = 6 000..
..= 400100,. = 9 0001 000
26
1 00010010
7/25/2019 Math2
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1
200,200
200
1 800
100.............
1
000............
2 :
15 = 100
8 = .200
10 = 1 000
3
200
023456789
...........................
4
,
kg100
5
:
500kg
4500da
100kg.
800kg
640da
100kg.
5 700DA.
14 500DA.
.
27
200
7/25/2019 Math2
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:
:
A
:
ACEBD2 EB
.
DC
28
11
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1
:2
6
:
3
4
8
3cm
29
7/25/2019 Math2
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1
:
3 150
...3 2003 225
............
2
1
5
8
6
3
:
3
:
1 356 3 000 1 983 2 338 2 308
3
:
( km )
240km
170km
700km
48km
: 4
30
01
7/25/2019 Math2
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5:
2 381 741
164 000
1 759 000
445 000
1 032 400
266 000
31
7/25/2019 Math2
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:
0.10.01
0.001
:
:
10 =20=1030
10 =60
:
1
.
:
1
0.110
2
.
3
.
32
:12
109876543210
0.10.010.001
7/25/2019 Math2
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:
100
.
1
0.01
100
:........................
:........................
:
1km
1m
:
1kg
1g
:
1m = . dm
12dm = m
3dm = .m
1m = ..cm
1cm = m
123cm = .m
:
1km = 1 000m
1m = 0.001 km3 400m = 3.400km
33
7/25/2019 Math2
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:
1
420.5 < 421 < ..
.< 375 < 375.2 2
.< 511 <
2
:
kg
520
519.400
520.200
518
.
.
34
7/25/2019 Math2
36/116
:
)
,
,
(
.
:
.
.....
35
13
7/25/2019 Math2
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7/25/2019 Math2
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:
1 2
3
1
2
3
37
7/25/2019 Math2
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:
1
:
95+50,87+23,70+65
2
450 cm = . m 630 cm = .. m 1 080 cm = m
3
:
=.....:630+4504504.50
+6.30 + 630 4.50 + 6.30 =.....:
:. . . . . .
............................................
:
1
:23.7 + 6.8 =
95.6 + 37.5 =
42.9 + 13.2 =
102.20 + 80.15 =
2
:
17.5 + . = 18.6
27.6 + ..= 31.9
38
14
7/25/2019 Math2
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1
:13.25 + 8.45 =
16.27 + 18.6 =
17.75 + 12.75 =
15.81 + 0.13 =
2
.501
.23.25
3
3
18.50kg
15.500kg
22kg
39
7/25/2019 Math2
41/116
:
.
:
:
=111715 =2813 =78
:
370cm = .. m
125cm = ..m245cm = ..m
:
125 = .3703703.70
.=.251.7031251.25-
. . . . . .
:
................................................................
:
1
:
25.85 13.61 =
78.18 55.13 =
121.21 21.15 =
2
:
75.1987.46365.32
. ... .. ... .. ... .
23.1551.23111.11
40
15
7/25/2019 Math2
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7/25/2019 Math2
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:
.
:
:
3.5 + 2.5 =
11.8 + 2.2 =
14.7 3.5 =
:
1
m16
m.554
3.40m.
2
:
1.5
3
:3.5m + 7.5 m =
13.5kg + 8.75kg =
28.35 14.15 =19.37 11.28 =
42
23456
1.5...............
16
7/25/2019 Math2
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1
:
15m + 3.75m + 5m = ..m
25 + 14.75 + 2.15 = ..18g + 14.85g + 12g = ..g
2
:
25.75 18 = ..150.50DA 50.25DA = DA36.5kg 19kg = ..kg
:
3
kg.2502
kg.5003
4
kg.50022
kg.2502.
5
DA2755,
DA7201.
6
DA70015,
DA5001.
43
7/25/2019 Math2
45/116
:
.
:
431
2
1
2
:
1410
2.........
3.........
4.........3
44
17
7/25/2019 Math2
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1
:
2
3
.
4
:
....
....
....
45
7/25/2019 Math2
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:
.
:
=:24+10+16
=10+100+1000
.
.
:
43 + 3 + 3 + 3 = 3
:34 + 4 + 4 = 4
:
...........................
:
831
.
.
2
9
15
.
46
18
7/25/2019 Math2
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1
:76+6+6+6+++=6
53+3+3++= 3
9+9+9+9=
8+8+8+8+8=
0+0+0=
2
:
2 . 3 = 515 . 2 = 30
2 . 3 = 69 . 3 = 27
25 . 25 = 508 . 5 = 13
12 . 12 = 2417 . 2 = 19
3
kg2 000.
4
6
250DA
.
47
+
7/25/2019 Math2
49/116
:
.
:
15 + 14 =
48 17 =
3 =12
15 =15
1+
1
217+2 154
:2 154
217+
:2 154 + 217 = 2 3712 371
= :372+ 86
2
:
645 283
:14
:645 283 = 362645
3867652833-
362
48
19
7/25/2019 Math2
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3
:4231
:
4 = 924231
:231
86084
8124
1+
249
4
92 781
:
9 = 3092 78192 781
:30927-
:51 530800
0-
18-
00
49
7/25/2019 Math2
51/116
1
:85
87
)(
2
45
9 kg
3
6 426 DA
6
.
4
:
205
:
6 000 DA
8 000 DA
51 000 DA
50
7/25/2019 Math2
52/116
:
.
:
:
1= d1= c1= m
1
)
(
:
102
:
100
1 000
3
:
10d= 2= d15c= 5= d20m= 10= c17m= 15= m
51
20
1
1d
1 c
1
m
7/25/2019 Math2
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1
:3= d= c= m10d+ 5c=
5d= c= m15d+ 160c= 160m= c200c+ 1500m=
2
>
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