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Apply multiplication and related division facts, partitioning, compensation and inverse strategies.
Free examples and worked answers. No account needed.
Practise the method.
Apply multiplication and related division facts, partitioning, compensation and inverse strategies.
Apply multiplication and related division facts, partitioning, compensation and inverse strategies.
Example 1
505+199= ?
Show worked answer
Answer: 704
- Add 200, then subtract 1.
- 505+200−1=704.
Example 2
700+299= ?
Show worked answer
Answer: 999
- Add 300, then subtract 1.
- 700+300−1=999.
Example 3
759+299= ?
Show worked answer
Answer: 1058
- Add 300, then subtract 1.
- 759+300−1=1058.
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