Compensation
19-12=
7
Draw a number line that shows 80-30=50
Check answer
39-8=
31
There are 39 fans at the baseball game.
It starts to rain and 8 fans leave.
How many fans are left at the baseball game?
31 fans
28-14=
14
Draw a number line that shows 70-22=
Check answer
25-9
16
Taylee has 46 stickers.
She gives 28 stickers to Cameron.
How many stickers does Taylee have now
8 stickers
35-17=
18
Show how to count back on a number line 64-27=37
check number line
46-27=
19
Ella has 6 crayons.
Cooper has 25 crayons.
How many fewer crayons does Ella have than Cooper?
What 2 equations can you use to solve?
19 crayons
6+__=25
25-6=__
58-39=
19
Explain how to count back on a number line with 55-22=
Check number line
78-49=
Do you need to regroup?
29
Yes
Ben has 44 books.
15 of the books are mysteries.
20 of the books are adventure stories.
The rest of the books are about animals.
How many of the books are about animals?
9
137-28=
109
Explain how to count up on a number line using 53-26=
Check number line
96-67=
Do you need to regroup?
29
Yes
9 cardinals are in the tree.
6 blue jays join them.
Then 3 birds fly away.
How many birds are still in the tree?
Step 1: ?
Step 2: ?
Step 1: 9+6= 15
Step 2: 15-3=12