NxM Ed 5

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Slide 1: 

Example 1 7 5 x 2 5 Multiplying Numbers with even difference Step 1 – Find the difference between the Numbers 1 7 5 2 5 - = 1 5 0 Step 3b – Add half of the difference to the smaller number Half of Difference = 1 5 0 / 2 = 7 5 1 7 5 7 5 - = 1 0 0 2 5 7 5 + = 1 0 0 or Step 2 – Find half of the difference Step 3a – Subtract half of the difference from the larger number or © LazyMaths.com

Slide 2: 

Example 1 7 5 x 2 5 Step 4a – Square the new number Final Answer 1 7 5 x 2 5 = 4 3 7 5 4 3 7 5 = 1 0 0 1 0 0 0 0 - = Multiplying Numbers with even difference 2 Step 4b – Square half of the difference = 7 5 5 6 2 5 2 Step 5 – Find the difference between the squares 1 0 0 0 0 5 6 2 5 © LazyMaths.com