I Maths!strubies.co.za/LD_Gr_2_W05_Mathematics.pdfMaths – Grade 2 Count every day up to 150 in 1s,...
Transcript of I Maths!strubies.co.za/LD_Gr_2_W05_Mathematics.pdfMaths – Grade 2 Count every day up to 150 in 1s,...
Maths – Grade 2
Count every day up to 150 in 1s, 2s, 3s, 4s, 5s
and 10s forwards and backwards. You can use
your number chart to help you.
Counting patterns.
Order and compare numbers.
10 more and 10 less.
Relationship between plus and minus.
Bonds of 13. Keep revising the other bonds.
5x Table and mental maths. + - x =
Repeated addition and subtraction – story sums.
Copy, extend, describe and make your own
geometric patterns.
Following directions to move around.
Count by grouping.
Tangram. It is a puzzle made of 7 shape pieces
that can be made into different pictures.
Extra worksheets – revision.
I Maths!
Counting in 2s.Counting in even 2s.
An even number is a number that can be divided into 2 equal groups. Look at the number 8. Find 8 counters at home and put them into 2 groups. 8 can be divided into 2 equal groups.
Both groups have 4 pentagons. There aren't any left over. So that makes 8 an even number.
Now colour in all the even numbers blue.
1 2 3 4 5 6 7 8 9 1011 12 13 14 15 16 17 18 19 20
8
4 4
21 22 23 24 25 26 27 28 29 3031 32 33 34 35 36 37 38 39 4041 42 43 44 45 46 47 48 49 5051 52 53 54 55 56 57 58 59 6061 62 63 64 65 66 67 68 69 7071 72 73 74 75 76 77 78 79 8081 82 83 84 85 86 87 88 89 9091 92 93 94 95 96 97 98 99 100101 102 103 104 105 106 107 108 109 110111 112 113 114 115 116 117 118 119 120121 122 123 124 125 126 127 128 129 130131 132 133 134 135 136 137 138 139 140141 142 143 144 145 146 147 148 149 150
What do you notice about the numbers you have coloured in?
They all end in 2 , 4 , 6 , 8 or 0 ! Yes zero!So those that you coloured in are even numbers!
Now complete these number patterns.
2 78 80 88 102
4 1046 106
44 42 36
11292 94 102
16
102 106 110
122 120 114
140 144
116 114 108
Mental Maths + More/ Plus Mental Maths – Less/Minus
1. 10 more than 15 is ____. 1. 10 less than 36 is ____.
2. 10 more than 37 is ____. 2. 10 less than 29 is ____.
3. 10 more than 22 is ____. 3. 10 less than 40 is ____.
4. 10 more than 40 is ____. 4. 10 less than 32 is ____.
5. 10 more than 11 is ____. 5. 10 less than 20 is ____.
6. 19 is 10 more than____. 6. 27 is 10 less than ____.
7. 37 is 10 more than____. 7. 40 is 10 less than ____.
8. 42 is 10 more than ____. 8. 33 is 10 less than ____.
9. 50 is 10____ than 40. 9. 19 is 10 _____ than 29.
10. 38 is 10____ than 28. 10. 35 is 10 ______ than 45.
Use the relationship between addition and subtraction.
Look for the pattern in these sums.
1. 10 + 1 = ____ 11 – 1 = ____ 2. 10 + 2 = ____ 12 – 2 = ____ 3. 10 + 3 = ____ 13 – 3 = ____ 4. 10 + 4 = ____ 14 – 4 = ____ 5. 10 + 5 = ____ 15 – 5 = ____ 6. 10 + 6 = ____ 16 – 6 = ____ 7. 10 + 7 = ____ 17 – 7 = ____ 8. 10 + 8 = ____ 18 – 8 = ____ 9. 10 + 9 = ____ 19 – 9 = ____
10. 10 + 10 = ____ 20 – 10 = ____
Plus sums have the biggest number at the end of the sum.
Minus sums have the biggest number at the front of the sum.
You can use the same numbers for the matching plus and minus sums.
Bonds of 13
Please learn the plus and minus bonds of 13off-by-heart. Use the number line to help you.
0 + 13 = 13 13 - 13 = 01 + 12 = 13 13 - 12 = 12 + 11 = 13 13 - 11 = 23 + 10 = 13 13 - 10 = 34 + 9 = 13 13 - 9 = 45 + 8 = 13 13 - 8 = 56 + 7 = 13 13 - 7 = 67 + 6 = 13 13 - 6 = 78 + 5 = 13 13 - 5 = 8 9 + 4 = 13 13 - 4 = 910 + 3 = 13 13 - 3 = 1011 + 2 = 13 13 - 2 = 1112 + 1 = 13 13 - 1 = 1213 + 0 = 13 13 - 0 = 13
0 1 2 3 4 1312111098765
Bonds of 13
Use the number line to complete the bonds of 13.
Now complete these sums.12 + ____ = 13 13 - 6 = ____4 + ____ = 13 13 - 8 = ____13 - 10 = ____ 11 + ____ = 132 + ____ = 13 13 - ____ = 113 + ____ = 13 3 + ____ = 135 + 5 + ____ = 13 13 - 6 - 2 = ____
0 1 2 3 4 1312111098765
1310 4 6 13
12 8 72
3 01 11
Mental Maths Mental Maths
1. 1 x 5 = ____ 1. 3 x 5 = ____ 2. 2 x 5 = ____ 2. 6 x 5 = ____ 3. 3 x 5 = ____ 3. 2 x 5 = ____ 4. 4 x 5 = ____ 4. 9 x 5 = ____ 5. 5 x 5 = ____ 5. 12 x 5 = ____ 6. 6 x 5 = ____ 6. 5 x 5 = ____ 7. 7 x 5 = ____ 7. 8 x 5 = ____ 8. 8 x 5 = ____ 8. 4 x 5 = ____ 9. 9 x 5 = ____ 9. 10 x 5 = ____ 10. 10 x 5 = ____ 10. 7 x 5 = ____
Mental Maths Fill in + - x or =
1. 2 __ 5 = 10 11. 10 __ 2 __ 12
2. 2 __ 5 = 7 12. 10 __ 2 __ 8
3. 5 __ 2 = 3 13. 8 __ 5 __ 3
4. 7 __ 2 = 9 14. 8 __ 5 __ 13
5. 7 __ 2 = 5 15. 8 __ 5 __ 40
6. 7 __ 2 = 14 16. 6 __ 2 __ 4
7. 4 __ 5 = 9 17. 6 __ 2 __ 12
8. 4 __ 5 = 20 18. 6 __ 2 __ 8
9. 5 __ 4 = 1 19. 10 __ 10 __ 20
10. 10 __ 2 = 20 20. 10 __ 10 __ 0
5x tables
Complete the following table.
Number of stars
Number of points on the stars (Repeated addition sum)
Timestables
1 5 1 x 5 = 5
2 5 + 5 = 2 x 5 = 10
3 5 + 5 + 5 = 3 x 5 =
4 5 + 5 + 5 + 5 = 4 x 5 =
5 5 + 5 + 5 + 5 + 5 =
6
7
8
9
10
v
Repeated addition story sums 5 x table
There are 3 groups of stars. There are 5 stars in each group. How many stars are there altogether?
5 + 5 + = 15
3 groups of 5 stars = 15 stars
3 x 5 = 15 stars
Complete this grid.1 2 3 4 5 6 7 8 9 105 10
Story sumsDraw pictures to show the repeated addition sum, writethe correct timestable and also write a sentence with your answer. The first one has been done for you.
There are 4 plates and 5 pieces of macaroni on each plate. How many pieces of macaroni are there altogether?
+ + +
4 x 5 = 20
There are 20 pieces of macaroni altogether._______________________________________________________________
Number of groups
Number of stars
5 5 5 5 =
5
205 5 5 5 =
5
20
There are 6 starfish on the sand. Each starfish has 5 arms.How many arms are there altogether?Draw
Repeated addition ____________________Multiply ____________________Sentence ______________________________________________________________
How many fingers do 6 girls have?Draw
Repeated addition ____________________Multiply ____________________Sentence ___________________________
Thami drinks 5 glasses of water in 1 day. How many glasses does he drink in 1 week?Draw
Repeated addition ____________________Multiply ____________________Sentence ___________________________
Geometric patterns
Describe each pattern in words.
I see a yellow triangle inside an
orange circle which is inside a big blue square.
__________________________________________________
__________________________________________________
__________________________________________________
__________________________________________________
Copy the pattern.
Extend the pattern.
___________
_______________
Draw your own pattern using Describe your pattern.
.
c c