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Practice problem

Grade 1 · 1.OA.B.4

Related facts

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Read a related fact

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Switch the addends

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Find the whole

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Find the missing part

Individual task

Practice problem

Grade 1 · 1.OA.B.3

True or false

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Write two facts

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Explain equal sums

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Complete the bond

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Make a fact family

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Check a claim

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Part or whole

Individual task

Practice problem

Grade 1 · 1.OA.B.3

Build a related story

Individual task

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