Chapter 5 - Go Math - First Grade

There are 3 dogs in the park. Some more dogs walked into the park. Now there are 9 in all.

How many dogs walked into the park?

Tags

CCSS.2.OA.C.3

Which fact is a related fact?

6 + 7 = 13

7 + 6 = 13

13 - 6 = 7

?

• 13 + 6 = 19

• 13 + 7 = 20

• 13 - 7 = 6

Tags

CCSS.1.OA.B.3

Look at the facts.

Are they related?

11 - 6 = 5

6 + 5 = 11

• Yes. They are related facts.

• No. They are not related facts.

Tags

CCSS.1.OA.C.6

CCSS.1.OA.D.7

Angelysse has 12 pennies. She spends 9 pennies. How many pennies does she have now?

Choose two number sentences that can help you solve the problem.

• 12 - 9 = 3

• 9 + 12 = 21

• 9 + 3 = 12

Tags

CCSS.2.OA.A.1

Find the unknown number.

8 + _ = 14

14 - 8 = _

Tags

CCSS.2.OA.A.1

Find the unknown number in these related facts.

_ + 6 = 11

6 + _ = 11

11 - _ = 6

11 - 6 = _

Tags

CCSS.1.OA.B.3

Ava has 8 blue marbles. A friend gives her 7 red marbles. How many marbles does Ava have now?

Tags

CCSS.2.OA.C.3

Choose all the ways that make 16.

• 3 + 13

• 5 + 9 + 2

• 4 + 10

Tags

CCSS.2.OA.A.1

Is the number sentence true?

4 + 3 = 7 - 3

• Yes

• No

Tags

CCSS.1.OA.B.3

Is the number sentence true?

9 = 5 + 4

• Yes

• No

Tags

CCSS.1.OA.A.1