Mental Math improves concentration span, number sense, sharpens memory and reduces calculation errors. Happy Practising!
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18 less than 90 is
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33 more than 22 = times 5
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11 + 11 + 11 + 11 + 11 = × 11
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20 bicycles have wheels.
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How many nines make 36?
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30 tens + = 30 ones + 300
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How many nines in 63?
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8 + = 290
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The product of 5 and 50 is
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2 fives added to 2 fives is
