How To Find 45 Percent of a Number Easy

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How To Find 45 Percent of a Number Easy

1.Choose a 2-digit number.
2.Multiply the number by 9.
3.Divide by 2.
4.Move the decimal point one place to the left.
 
Ex-1:
If the number selected is 52:
Multiply by 9: 9 × 52 = 450 + 18 = 468
Divide by 2: 468/2 = 234
Move the decimal point one place to the left: 23.4
Hence 45% of 52 = 23.4

Ex-2:
If the number selected is 36:
Multiply by 9: 9 × 36 = 270 + 54 = 324
Divide by 2: 324/2 = 162
Move the decimal point one place to the left: 16.2
Hence 45% of 36 = 16.2


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