Demystifying - Column subtraction

Goal

Subtract integers and decimals in aligned columns, exchange when a column cannot pay, and keep money or measure units with the difference.

Practise subtracting in columns

For the full explanation, return to the lesson on column subtraction.

Aligning place valuesQuestion 1 of 12
  1. 1Aligning place values
  2. 2Exchanging
  3. 3Change and difference

Subtract the two numbers

Calculate the difference.

Keep building

Next lesson

Exchanging across zeros

Follow an exchange through zero columns without losing its place value.

 Next practice

Exchanging across zeros

Practise subtraction where an exchange must pass through one or more zeros.