SHORTCUT TO MULTIPLY NUMBER WITH 25

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Information about SHORTCUT TO MULTIPLY NUMBER WITH 25
Education

Published on March 24, 2009

Author: LazyMaths

Source: authorstream.com

Slide 1: Example 9 8 9 8 9 x 2 5 Multiplying any Number with 25 Step 1 – Halve the Number (Divide the number by 2) As you halve the number, don’t forget to put the decimal point Intermediate Number 1 9 8 9 8 9 Halve © LazyMaths.com 4 9 4 9 4 . 5 Slide 2: Example 9 8 9 8 9 x 2 5 Multiplying any Number with 25 Step 2 – Halve the Intermediate Number (Divide the number by 2) As you halve the number, don’t forget to put the decimal point Intermediate Number 2 4 9 4 9 . 5 Halve © LazyMaths.com 2 4 7 4 7 . 2 5 Slide 3: Multiplying any Number with 25 Step 3 – Multiply by 100 (Move two decimal places to the right) Final Answer 9 8 9 8 9 x 2 5 = 2 4 7 4 7 2 5 Example 9 8 9 8 9 x 2 5 2 4 7 4 7 2 5 2 4 7 4 7 2 5 . © LazyMaths.com

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