Adding Up
Removal
Place Value
Adjusting One Number
Keeping a Constant Difference
100
20 - 9
What is 11
100
98 - 50
What is 48
100
400 - 200
What is 200
100
51 - 25
What is 26
100
51 - 26
What is 25
200
50 - 29
What is 21
200
98 - 79
What is 19
200
40 - 50
What is -10
200
37 - 18
What is 19
200
34 - 19
What is 15
300
100 - 37
What is 63
300
100 - 37
What is 63
300
4 - 6
What is -2
300
80 - 49
What is 31
300
149 - 124
What is 25
400
150 - 74
What is 76
400
150 - 28
What is 122
400
444 - 256
What is 188
400
100 - 68
What is 32
400
261 - 129
What is 132
500
Paul plans to read 90 pages each day. So far, he has read only 16 pages. How many pages does Paul need to read to reach his goal?
What is 74 pages
500
Ken has 50 marbles. He decides to give his friend Stacy 17 marbles. How many marbles will Ken have left?
What is 33 marbles
500
Kiki had $33 to spend at the book store. She bought a book that cost $16. How much money does she have left to spend?
What is $17
500
Chi has $100 to spend at the toy store. He decided to buy a set of Legos for $34 and spend what he has left at the book store. How much money does Chi have to spend at the book store?
What is $66
500
The area of John's room is 49 square feet. His desk takes up 17 square feet of his room. How much square feet does John have left for his bed?
What is 32 square feet
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