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Practice problem

Grade 2 · 2.NBT.B.5

Analyze an error

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Make a ten while adding

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Use a number line

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Analyze an error

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Make a ten while adding

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Use a number line

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Analyze an error

Individual task

Practice problem

Grade 2 · 2.NBT.B.5

Add or subtract within 100

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Add with an exchange

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Rename across zero

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Add or subtract 10

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Find the missing number

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Estimate first

Individual task

Practice problem

Grade 2 · 2.NBT.B.7

Add and subtract within 1,000

Individual task

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