Hundred Chart/Open Number Line
Break Apart Tens
Compensation
One-Step and Two-Step Problems
Math Argument
100
Solve 42+10 using the hundred chart
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52
100
Solve by breaking apart one of the addends:
46+13=
59
100
What is compensation?
Making easier numbers to add
100
Dominic planted 20 tulips and 18 roses in his garden. How many flowers did he plant in all? Show your work.
38
100
What 3 things do you use to help you make a math argument?
Pictures, numbers, and words
200
Solve using the hundred chart: 65+20
85
200
Solve by breaking apart one of the addends:
52+26=
78
200
Solve using compensation:
23+28
51
200
Mary carved 12 pumpkins. Then she carved 7 more. How many pumpkins did Mary carve in all? Show your work.
19
200
Use pictures, numbers, and words to make a math argument:
Greg had 45 sports cards. Jamal gives him 26 more cards. How many sports cards does Greg have now?
71
300
Solve using an open number line:
47+33=
80
300
Solve by breaking apart one of the addends:
44+44=
88
300
Solve using compensation:
37+55=
92
300
Ken has 45 stamps. He uses 20 stamps. Then he buys 7 more stamps. How many stamps does he have now? Show your work.
A) 72
B) 32
C) 27
D) 52
C)32
300
Use pictures, numbers, and words to make a math argument:
On the bus, there are enough seats to hold 54 students. If there are 25 boys and 31 girls, will there be enough seats for all the students?
No
400
solve using an open number line:
52+26=
78
400
Solve by breaking apart one of the addends:
74+34=
108
400
Solve using compensation:
36+19=
55
400
Mikey had 15 baseball cards. He gave away 8. Then, he bought 12 more. How many cards does Mikey have now? Show your work.
A) 23
B) 35
C) 19
D) 27
C) 19
400
Use pictures, numbers, and words to make a math argument:
There are 16 chickens in the yard. There are 19 chickens in the barn. There are 25 nesting boxes. Will all of the chickens have a nest? Explain.
No
500
solve using an open number line:
Beth has 64 crayons. She gets 27 more crayons. How many crayons does Beth have in all?
91
500
Solve by breaking apart one of the addends:
89+55=
144
500
Use compensation to solve.
Tom and Mike went to the store to buy food for their cookout. Tom bought 41 hotdogs and Mike bought 26 hamburgers. How many hamburgers and hotdogs do they have altogether.
67
500
Lucy had 12 pencils. She gave 7 to her friends. Then, she bought 8 more pencils. How many pencils does Lucy have now? Show your work.
13
500
Use pictures, numbers, and words to make a math argument:
A second-grade class sets a goal to collect 70 cans. One week they collect 38 cans. The next week they collect 35 cans. Do they meet their goal?
Yes