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Practice problem

Grade 1 · 1.OA.A.1

Show the pencil story

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Find what is left

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Compare two groups

Individual task

Practice problem

Grade 1 · 1.OA.A.2

Write a story equation

Individual task

Practice problem

Grade 1 · 1.OA.A.2

Unknown change

Individual task

Practice problem

Grade 1 · 1.OA.A.2

Unknown start

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Choose the operation

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Build the whole

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Show the difference

Individual task

Practice problem

Grade 1 · 1.OA.A.1

Compare in context

Individual task

Practice problem

Grade 1 · 1.OA.A.2

Two-step story

Individual task

Practice problem

Grade 1 · 1.OA.C.5

Make ten

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Break apart to add

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Subtract through ten

Individual task

Practice problem

Grade 1 · 1.OA.B.4

Related facts

Individual task

Practice problem

Grade 1 · 1.OA.C.5

Count on

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Explain a strategy

Individual task

Practice problem

Grade 1 · 1.NBT.C.5

Subtract a ten

Individual task

Practice problem

Grade 1 · 1.NBT.C.4

Add a ten

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Choose a helpful fact

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Jump back

Individual task

Practice problem

Grade 1 · 1.OA.C.6

Make a ten story

Individual task

Practice problem

Grade 1 · 1.NBT.B.2

Build a two-digit number

Individual task

Practice problem

Grade 1 · 1.NBT.B.3

Compare tens first

Individual task

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