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Practice problem

Grade 2 · 2.OA.A.1

Match story and model

Individual task

Practice problem

Grade 2 · 2.OA.A.1

Explain a comparison

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Make ten

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Split ten

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Subtract with a strategy

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Add by making a ten

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Use a related fact

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Check an equation

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Find the missing part

Individual task

Practice problem

Grade 2 · 2.OA.B.2

Explain a strategy

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Pair the objects

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Find the leftover

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Read equal groups

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Repeated addition

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Complete an array

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Find a missing cell

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Count by pairs

Individual task

Practice problem

Grade 2 · 2.OA.C.3

Turn an array

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

See hundreds

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

Trade one hundred

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

Read expanded form

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

Read a number name

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

Compare hundreds

Individual task

Practice problem

Grade 2 · 2.NBT.A.1

Explain zero

Individual task

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