2M IC Chapter 1 Review

Addition and Subtraction

100

16 - 8 = ?

8

200

12 + 5 = ?

17

300

Double 8. Add one.

17

400

Double 4. Subtract 1.

7

500

5 + 9 + 1 = ?

15

Missing Addends

100

9 + ___ = 10

1

200

15 + ____ = 20

5

300

___ + 9 = 13

4

400

If ____ is added to 7, the answer will be 16.

9

500

If _____ is added to 9, the answer will be 21

12

Fact Patterns

100

What comes next? What is the pattern?

1 + 4 = 5

2 + 5 = 7

3 + 6 = 9

_ + _ = _

4 + 7 = 11

200

1 + 2 = 3

1 + 3 = 4

1 + 4 = 5

_ + + = _

1 + 5 = 6

300

16 - 9 = 7

15 - 8 = 7

14 - 7 = 7

__ - __ = __

13 - 6 = 7

400

14 - 3 = 11

13 - 4 = 9

12 - 5 = 7

__ - __ = __

11 - 6 = 5

500

6 + 6 = 12

8 + 8 = 16

10 + 10 = 20

__ + __ = __

12 + 12 = 24

Fact Families

100

3, 3, 6

3 + 3 = 6

3 + 3 = 6

6 - 3 = 3

6 - 3 = 3

200

6, 4, 10

6 + 4 = 10

4 + 6 = 10

10 - 4 = 6 

10 - 6 = 4

300

14, 6, 8

8 + 6 = 14

6 + 8 = 14

14 - 8 = 6

14 - 6 = 8 

400

5, 11, 6

5 + 6 = 11

6 + 5 = 11

11 - 6 = 5

11 - 5 = 6 

500

20, 14, 6

14 + 6 = 20

6 + 14 = 20

20 - 14 = 6

20 - 6 = 14

Word Problems

100

The second grade classes have ant farms. Mr.Rather's class has 10 ants. Mrs. Lee's class has 10 ants. How many ants to both classes have altogether?

Both classes have 20 ants.

200

Vicki has 17 red stickers and 9 blue stickers. How many more red stickers than blue stickers does she have?

Vicki has 8 more red stickers.

300

Mac has 4 cats. He also has 4 fish and 1 dog. How many pets does Mac have?

Mac has 9 pets.

400

Dale is in line at the zoo. 6 children are in front of him. 2 children are behind him. How many children are in the line?

9 children are in line

500

Animal erasers cost 1 penny. Lucy buys 5 tiger erasers, 5 lion erasers, and 1 fish eraser. How much money does Lucy spend?

11 cents