Column Addition (Year 4)
Practise column addition within Arithmetic for Year 4, with worked examples and instant feedback.
The questions below are generated to match the National Curriculum for Year 4 and get harder as you progress from Rookie to Guru.
Worked examples
What is 7 × 8?
- 54
- 56
- 64
- 48
Answer: 56. Seven eights are 56. Try the bridge: 7 × 8 = (7 × 10) − (7 × 2) = 70 − 14 = 56.
Calculate 432 − 178.
- 244
- 254
- 264
- 274
Answer: 254. 432 − 178: exchange as needed. 12 − 8 = 4 (ones), 12 − 7 = 5 (tens after exchange), 3 − 1 = 2 (hundreds). Answer: 254.
Why does (12 × 4) ÷ 2 give the same answer as 12 × 2?
- Because ÷ 2 and × 2 are inverse operations, so × 4 then ÷ 2 is the same as × 2.
- Because both equal 24 by coincidence.
- Because 12 is even.
- Because of the order of operations.
Answer: Because ÷ 2 and × 2 are inverse operations, so × 4 then ÷ 2 is the same as × 2.. × 4 is the same as × 2 × 2. Then ÷ 2 cancels one of the × 2. Result: × 2.
Related skills
Frequently asked questions
- What is column addition?
- Practise column addition within Arithmetic for Year 4, with worked examples and instant feedback.
- How can my child practise column addition at home?
- Work through the examples below, then start a free adaptive session. Northstar adjusts the difficulty automatically and tracks mastery over time.
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