What are the missing values? (a) 100 (b) 100 100 100
1
(c)
10 (d)
20 80
20 80
10
100
100
20 80
10
20 80
10
40
60
50
40
60
50
100
100
40
60
50
40
60
50
Solve these problems. (a) Riana has 100 cents. She spends 45 cents. How many cents does she have left? (b) There are 65 marbles in a jar and 35 marbles in a box. How many marbles in total?
2
E
Work with a partner or in a small group. Use 10 sticks of 10 cubes. Divide them into two groups of sticks, e.g. 70 and 30 Half one of the sticks of 10 cubes. Put one half with each of the two groups.
Write an addition and then a subtraction sentence, e.g. 65 + 35 = 100 and 100 − 65 = 35. How many different ways can you do this?
36
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03/05/2022 10:18
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