Addition with 20 Strategies

Jesus has 4 hats. He gets 7 more hats. How many hats does Jesus have in all?

• 4 5 6 7 8 9 10 11

• 7 6 5 4 3

• 4 5 6 7 8

• 7 8 9 10

Tags

CCSS.1.OA.A.1

Logan draws an open number line to find the sum of 8 + 6.

8 + 6 = ?

Part A

Which number line can Logan use to count on to find the sum of 8 + 6?

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Tags

CCSS.1.NBT.C.4

CCSS.2.MD.B.6

7 friends play at the beach.

8 more friends join them.

How many friends are playing now?

Which equation below can help you solve the problem?

• 7 + 1 = 8 friends

• 8 − 7 = 1 friend

• 7 + 8 = 15 friends

• 9 + 7 = 16 friends

Tags

CCSS.2.OA.A.1

D'Angelo reads 6 pages of a book on Monday.

He reads 7 pages on Tuesday.

How many pages does he read in all?

Which number line shows the problem?

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Tags

CCSS.5.NBT.B.7

Rebecca has 6 erasers.

She buys 5 more.

How many erasers does Rebecca have in all?

Make 10 to add.

• 13

• 12

• 11

• 10

Tags

CCSS.2.OA.A.1