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Nr10 4

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Information about Nr10 4
Education

Published on June 2, 2008

Author: amishbhavsar

Source: authorstream.com

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Slide 1: Example 1 7 x 2 2 Multiplying any Numbers near 10 Step 1 – Compare the two numbers with 10 1 7 2 2 1 0 1 0 ~ ~ + 7 + 1 2 = = = 2 9 or Step 2 – Cross add the difference Step 3 – Append ‘0’ to the sum 2 9 0 If Number > 10, difference is +ve Number < 10, difference is -ve © LazyMaths.com Slide 2: Step 3 – Multiply the differences Final Answer Example 1 7 x 2 2 Multiplying any Numbers near 10 1 7 2 2 + 7 + 1 2 2 9 0 Multiply + 8 4 3 7 4 1 7 x 2 2 = 3 7 4 Remember (+) x (+) = (+) (-) x (-) = (+) (+) x (-) = (-) (-) x (+) = (-) Step 5 – Add the numbers © LazyMaths.com

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