x o f 10 1 = 90 x ∗ 10 1 = 90 10 x = 90 x = 10 ∗ 90 x = 900
Taking a number's 1/10 means dividing that number by 10. Therefore when you are asked to find the number that was applied the 1/10 to produce 90, you simply multiply 90 with 10. Thus the answer is 900.
The number that 90 is 1/10 of is 900. This is found by multiplying 90 by 10. Therefore, 90 = 10 1 × 900 .
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