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Multiply larger numbers, partition efficiently and check answers with estimates.
Free examples and worked answers. No account needed.
Practise the method.
Multiply larger numbers, partition efficiently and check answers with estimates.
Multiply larger numbers, partition efficiently and check answers with estimates.
Example 1
3 boxes each contain 471 beads. How many beads are there?
Show worked answer
Answer: 1413
- Partition 471 into hundreds, tens and ones.
- Multiply each part by 3 and add: 471×3=1413.
Example 2
Use 337×24=337×20+337× □. What is □?
Show worked answer
Answer: 4
- Partition the second factor into tens and ones.
- 24=20+4, so □ =4.
Example 3
Estimate 154×6 by first rounding 154 to the nearest hundred.
Show worked answer
Answer: 1200
- 154 rounds to 200 to the nearest hundred.
- Multiply 200×6=1200. This is an estimate, not an exact total.
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