Module 1 Review

19 + 5

• 4

• 24

• 14

Answer explanation

The answer is 24 because when I add 1 to 19 it equals 20. Then 20 plus 4 gives me the answer of 24.

58 - 5

• 53

• 50

• 3

Answer explanation

The only change happens in the ones place. I know that 8 minus 5 equals 3.

16 - 7

• 12

• 11

• 9

Answer explanation

I can use my quick tens strategy to subtract 7 from 16.

7 + 54

• 61

• 47

• 57

Answer explanation

I can use my number bond strategy to make the next ten!

47 + 50

• 17

• 97

• 57

Answer explanation

The only change happens in the tens place. I know that 40 plus 50 equals 90!

83 - 5

• 85

• 82

• 78

Answer explanation

I can use my number bond strategy to take out 10 from 83. I subtract 10 - 5, which equals 5. Then I can add 73 and 5 which gives me 78.

Trevor's mom gave him 7 stickers to start his collection. He received 24 more for his birthday. How many stickers does Trevor have now?

James has 50 stickers and gives away 8. How many stickers does James have now?

Tammy gave 9 markers to Sam. She started with 53 markers. How many markers does Tammy have now?

39 + 6

• 33

• 36

• 45

Answer explanation

I can use a quick tens strategy to count forward and find the answer of 45.