Without Regrouping
What is the difference of 45-21
24
Estimate the difference of 24 - 13
20 - 10 = 10
What is the difference of 24 - 15
9
I have 2 points and Kit has 9 points. How many more points does Kit have than me?
7
What is the difference of 75-15
60
Estimate the difference of 46 - 31
50 - 30 = 20
What is the difference of 37 - 19
18
You packed 13 suitcases for your trip to Paris. I only needed 5. How many more suitcases did you pack than me?
8
What is the difference of 66-41
25
Estimate the difference of 48 -9
50-10 = 40
What is the difference of 51 - 37
14
I have 36 Christmas Cards to send out this year. If I've already sent 14, how many more cards do I have left to send?
22
What is the difference of 54-24
30
Estimate the difference of 67 - 24
70 - 20 = 50
What is the difference of 74 - 49
25
I picked a bushel of 27 bananas. 9 of them were rotten by the time I got home. How many bananas are still edible?
18
What is the difference of 28-13
15
Estimate the difference of 36 - 14
40 - 10 = 30
What is the difference of 91 - 78
13
You attend 40 dance classes every year. So far this year, you've been to 18. How many classes are left?
22