GB-01-02-001 · Integer subtraction
Work out .
Column Subtraction (Non-Calculator Arithmetic)
Supplementary GCSE method — not covered in this booklet
Method
1) Align digits by place value
2) Subtract from right to left, regrouping (borrowing) where top digit < bottom digit
Worked Example (GB-01-02-001)
1)
Use a correct column subtraction method, including regrouping.
2)
Ans =