Regrouping?
Do you need to regroup in 31-17=?
Why?
Yes! There are not enough ones in 31 to subtract 7.
79-7= ?
72
On Monday I picked up 12 seashells and Tuesday I picked up 11 seashells.
How many seashells do I have all together?
If I put 10 sea shells on a craft, how many seashells would I have left?
23 seashells
13 seashells
Write an addition sentence that can help you solve the subtraction problem 24-16=
16 + 8 = 24
Do you need to regroup in 74-44=?
Why?
No! There are just enough ones in 74 to subtract 4.
46-9= ?
37
There was a bowl of 78 Valentine M&M's on the counter. 43 of those M&M's were red and the rest were pink. How many M&M's were pink?
35 M&M's
Write an addition sentence that can help you solve the subtraction problem 58 - 12 =
12 + 46 = 58
Do you need to regroup in 45-27=?
Why?
Yes! There are not enough ones in 45 to subtract 7.
69-17= ?
52
Ellen picks 22 roses and 15 daisies from her garden. How many flowers does she pick in all?
Then Ellen puts 28 of these flowers in vases. How many flowers are not in vases?
37 flowers
9 flowers
Write an addition sentence that can help you solve the subtraction problem 46 - 17=
17 + 29 = 46
What do you need to do when you need to regroup?
Explain the process.
You need to take 1 from the tens.
Knock knock knock on your neighbor's door and ask if you can have one.
45-27= ?
18
A story has 72 pages. Dan reads 38 pages on Monday and 26 pages on Tuesday.
How many pages did he read in all?
How many pages are left?
64 pages
8 pages
Write an addition sentence that can help you solve the subtraction problem 90 - 52 =
52 + 38 = 90