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St Gregory'sCatholic Primary School

Working and Learning together with Jesus as one family

Number: Addition and Subtraction

Add and subtract 1s 10s 100s and 1000s

Add two 3-digit numbers - not crossing 10 or 100

Add two 4-digit numbers - no exchange

Add two 3-digit numbers - crossing 10 or 100

Add two 4-digit numbers - one exchange

Add two 4-digit numbers (more than one exchange)

Subtract a 3-digit number from a 3-digit number - no exchange

Subtract two 4-digit numbers - no exchange

Subtract a 3-digit number from a 3-digit number - exchange

Subtract two 4-digit numbers - one exchange

Subtract two 4-digit numbers (more than one exchange)

Efficient subtraction

Estimate answers

Checking strategies

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