Duck and Frog Pond Problems

Some ducks were in a pond. 4 baby ducks joined them. Now, there are 6 ducks in the pond. How many ducks were in the pond at first?

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Tags

CCSS.2.OA.A.1

Some frogs were in a pond. Three jumped out, and now there are 5 frogs in the pond. How many frogs were in the pond at first?

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Tags

CCSS.2.OA.A.1

Each of the solutions is missing numbers or parts of the drawing. Fix each one so it is accurate and complete. 13 + 8 = 21

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Tags

CCSS.2.OA.A.1

Circle the student work that correctly solves the addition problem. 16 + 5

• Incorrect student work

• Incorrect student work

• Correct student work

Tags

CCSS.2.OA.A.1

Fix the work that was incorrect by making new work in the space below with the matching number sentence.

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CCSS.2.OA.A.1

Circle the student work that correctly solves the addition problem. 13 + 20

• [Diagram of student work]

• [Diagram of student work]

• [Diagram of student work]

Tags

CCSS.2.OA.A.1

Fix the work that was incorrect by making a new drawing in the space below with the matching number sentence.

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Tags

CCSS.1.NBT.C.4

CCSS.2.NBT.B.5

Solve using quick tens, the arrow way, or number bonds. 17 + 5 = _____

Share with your partner. Discuss why you chose to solve the way you did.

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Tags

CCSS.RI.1.1

CCSS.RI.1.4

CCSS.RL.1.1

CCSS.RL.K.1

CCSS.RI.K.1

Circle the work that correctly solves the addition problem: 17 + 9.

• Strategy a

• Strategy b

• Strategy c

Tags

CCSS.2.NBT.B.5