Lesson 1 Review

Which is these can be used to solve 6+5

• 5 + 5 + 1

• 6 + 6 + 1

• 10 + 5

• 10 + 1

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

Lulu makes 6 bracelets for her family. She makes 8 bracelets for her friends. How many bracelets did Lulu make in all?

• 12

• 14

• 16

• 18

Tags

CCSS.2.OA.A.1

Which double or double plus one fact could you use to solve the problems

• 7 + 7 + 1

• Rory has 5 cards. He gets 6 more cards for his birthday. How many cards does he have all together?

• 6 + 6

• Oli found 8 snails and 8 frogs. How many animals did he find in all?

• 3 + 3 + 1

• Coy has 6 keys and finds 6 more keys. How many keys does he have in all?

• 8 + 8

• 3 + 4

• 5 + 5 + 1

• 7 + 8

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2

What is 7 + 8? Show your work.

Decide if these problems can be solved with the double plus one strategy

Groups:

(a) YES

,

(b) NO

• 6 + 6

• 7 + 9

• 6 + 7

• 7 + 8

• 9 + 7

• 2 + 4

• 2 + 3

• 5 + 6

Tags

CCSS.1.OA.C.6

CCSS.2.OA.B.2