Break Apart
36 – 12
24
Draw a tens and ones model for 45 – 12. And Solve.
33
How do you use a number line to solve 57−24?
Start at 57 and move 24 steps back to land on 33.
If you have 72 candies and you give away 25, how many do you have left?
72−25=47 candies left.
What is 57−23? Use any subtraction strategy to solve.
34
54 – 23
31
Use quick pic to solve 63 – 41.
22
Show how to find 65-29 on a number line.
Start at 65 and move 29 steps back to land on 36.
There are 54 students in a class, and 18 go home early. How many students are left?
54−18=36 students left.
Solve 66−39 using any strategy you prefer.
27
62 – 47
15
What does the ten and ones chart look like for 16−4?
Draw a chart with 1 ten and 6 ones, crossing out 4 ones to show 12 left.
What steps would you take to use a number line for 73−46?
Start at 73 and move 46 steps back to land on 27.
You have 93 stickers, and you lose 27. How many stickers do you have now?
93−27=66 stickers left.
Use any method to solve 91−48.
43
93 – 58
35
Explain how to represent 19−7 using the quick pics strategy.
Draw a chart with 1 ten and 9 ones. Cross out 7 ones to find 12 left.
Explain how to represent 88−52 on a number line.
Start at 88 and move 52 steps back to land on 36.
In a library, there were 76 books. If 29 books were checked out, how many books are still in the library?
76−29=47 books left.
Explain how you would approach solving 99−57 and provide the answer.
42
Explain how you would use the break apart strategy to solve 55-28
Break 55 into 50 + 5. Then break 28 into 20 + 8. Then subtract the ones. We cannot subtract 5-8, so we need to REGROUP! Take ten away from 50. 50 becomes 40 and 5 becomes 15. Subtract 15-8 to get 7. Then subtract the tens 40-20 = 20. Then add the tens and ones. 20 + 7 = 27.
Show how regrouping looks for 53 – 28 and solve.
25
Solve 99-37 using a number line and describe your process.
62
A toy store had 85 toys, and they sold 48. How many toys are still available?
85-48=37 toys
A farmer had 97 apples. He sold 38 apples and then picked 15 more from his orchard. How many apples does he have now?
First, calculate the apples after selling: 97−38=59. Then add the apples picked: 59+15=74. The farmer has 74 apples now.