How To Find 40 Percent of a Number Easy

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How To Find 40 Percent of a Number Easy

1.Choose a 2-digit number.
2.Multiply the number by 4.
3.Move the decimal point one place to the left.

Ex-1:
If the number selected is 73:
Multiply by 4: 4 × 73 = 280 + 12 = 292.
Move the decimal point one place to the left: 29.2
Then 40% of 73 = 29.2.

Ex-2:
If the number selected is 21:
Multiply by 4: 4 × 21 = 84
Move the decimal point one place to the left: 8.4
Then 40% of 21 = 8.4.

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