Break Apart
Compensation
Regrouping
3 or 4 Addends
Number Stories
100
Show how to break apart the ones to make a ten. Write the sum. 23 + 9 = ______
What is 32? (hold up your slate)
100
Show how to make one addend the next tens number. Write the new addition sentence. 37 + 25 = _____
What is 40 + 22 = 62 or 32 + 30 = 62?
100
When do you regroup in addition?
What is "You regroup when you have 10 or more ones in all"?
100
58 + 24 + 3 = ______
What is 85?
100
Jake has 57 stamps. He buys 37 more stamps. How many stamps does he have now?
What is 94?
200
Show how to break apart the ones to make a ten. Write the sum. 48 + 5 = ______
What is 53? (hold up your slate)
200
Make one addend the next tens number and write a new sentence. 39 + 19 = _______
What is 40 + 18 = 58 or 38 + 20 = 58?
200
Draw quick picture to show if you regroup. Write the sum. 26 + 38 = _____
What is (hold up your slate) 64?
200
54 + 31 + 17 = ______
What is 102?
200
There are 45 red grapes in the bowl. There are 18 green grapes in the bowl. How many grapes are in the bowl?
What is 63?
300
Break apart the addends to find the sum. 35 --> + 54 --> ---------
What is 80 + 9 = 89?
300
Which shows a way to find the sum for 41 + 29? a) 41 + 30 = 71 b) 40 + 20 = 60 c) 40 + 30 = 70 d) 50 + 30 = 80
What is c) 40 + 30 = 70?
300
Draw quick picture to show if you regroup. Write the sum. 54 + 25 = _____
What is (hold up your slate) 79?
300
44 + 23 + 16 = _______
What is 83?
300
Gina and Eric play a game. Gina scores 26 points. Eric scores 31 points. How many points do Gina and Eric score together?
What is 57?
400
Break apart the addends to find the sum. 43 --> + 29 --> ---------
What is 60 + 12 = 72?
400
Which shows a way to find the sum for 66 + 16? a) 60 + 16 = 76 b) 70 + 16 = 86 c) 60 + 12 = 72 d) 70 + 12 = 82
What is d) 70 + 12 = 82?
400
Suppose you are adding 27 and 68. Will you regroup? Explain.
What is "Yes, because 7 + 8 + 15 ones, which is enough to make 1 ten and 5 ones."?
400
58 + 17 + 23 + 31 = ______
What is 129?
400
Dora read 31 books this summer. Kyle read 7 more books than Dora. How many books did Dora and Kyle read?
What is 69?
500
Break apart the addends to find the sum. 37 --> + 45 --> ---------
What is 70 + 12 = 82?
500
How can you make an addend a ten to help solve an addition problem?
What is "I can take ones from one addend to make the other addend a tens number"?
500
23 + 39 ------- Show how to record regrouping in a vertical format.
What is (hold up your slate) 62?
500
15 + 42 + 30 +12 = ______
What is 99?
500
As a group, write a number story to match this number sentence: 45 + 19 = _____
What is (hold up your slate)?
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