This worksheet teaches students to multiply larger numbers by one- and two-digit numbers using efficient strategies like partitioning and area models, and to check their answers with estimates. The worksheet is split into warm-up questions, standard questions and then extension questions to test you.
The concepts it covers:
- Partitioning: split a number by place value, multiply each part, then add. 324 × 8 = 300 × 8 + 20 × 8 + 4 × 8.
- Doubling: multiplying by 4 is doubling twice; multiplying by 8 is doubling three times.
- Factors: you can rearrange factors to make it easier. 25 × 36 = 25 × 4 × 9 = 100 × 9.
- To multiply by a two-digit number, split it into tens and ones: 47 × 23 = 47 × 20 + 47 × 3.
What your child will practise:
- Multiplying 2-, 3- and 4-digit numbers by a one-digit number.
- Multiplying by a two-digit number using partitioning or a written method.
- Choosing an efficient strategy: doubling, factors or partitioning.
- Estimating by rounding to check an answer.
- Solving multi-step word problems.
Every section opens with a worked example, and the download includes a full answer key with step-by-step solutions and teaching notes on the mistakes students most commonly make.
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