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?

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?

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

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.

Tags

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.

Tags

CCSS.2.NBT.B.5

CCSS.1.NBT.C.4

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.

Tags

CCSS.RI.1.1

CCSS.RI.1.4

CCSS.RL.1.1

CCSS.RL.2.1

CCSS.RL.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