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Mumz
[18]
2 years ago
9
Instead of dividing 220 x 5 double both numbers and mentally calculate the quotient
Mathematics
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answer:
kobusy
[5.1K]
2 years ago
3
0
220 * 5 = 220 * 2/2 * 5 * 2/2 = 440 * 10 / 4 = 110 * 10 =
1100
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