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Fitzgerald
Mathematics
23 June, 13:47
How you could multiple 6*99 in your head?
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Gustavo
23 June, 13:49
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99 is 1 less than 100.
(100-1) * 6
100*6=600
-1*6=-6
600-6 = 594
Answer: 594
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Jocelynn Ball
23 June, 14:03
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Since 99=100-1,
we use the distribution property,
6 (99) = 6 (100-1) = 600-6 = 594
With minimum practice, the technique can be mastered in a short time.
For example, 15*998 = 15 (1000-2) = 15000-30=14970
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