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Math · Age 9

Addition & Subtraction — for 9-year-olds

Practice Addition & Subtraction with curriculum-aligned exercises for age 9. The exercises are grouped by sub-topic so kids can work through them in order or skip straight to the area they need.

23 exercises

Topics in this module

Add 3- and 4-digit numbers using written column methods (with regrouping)

Estimate answers using rounding before calculating

Four-digit subtraction with borrowing

Four-digit addition with carrying

Use inverse operations to check addition and subtraction answers

Subtract 3- and 4-digit numbers using written column methods (with regrouping)

Use mental strategies to add and subtract when appropriate

Subtraction from five-digit numbers

Mixed operations up to 99,999

Five-digit column subtraction

Five-digit column addition

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Other modules for this age

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