Here’s an example of a SPEED MATH shortcut for MULTIPLYING WITH 999 : (Mul) Nx999 from the MULTIPLICATION category.
When can I use this method?
For multiplying any number with 999.
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Download Practice sheet for MULTIPLYING WITH 999
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Notes –
- The separator should be inserted before the hundred’s (100’s) digit.
- The complement of a number is what you need to add to it to make it up to some specified total – in this case 1000.
Related Shortcuts –
Multiplying with 9: (Mul) Nx9
Multiplying with 99: (Mul) Nx99
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