Maths Tricks multiply by 11

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Maths Tricks : 

Maths Tricks …By YuvaLakshya Team All rights reserved

Slide 2: 

Multiply a number by 11 (eleven) 5 2 3 11 -------- 3 Write unit digit as it is 5 2 3 11 -------- 5 3 Add these two digits 2+3 = 5 Here carry is “0” Step 1 Step 2

Slide 3: 

5 2 3 11 --------- 7 5 3 Add these two digits 5+2=7 Here carry is “0” Step 3 5 2 3 11 --------- 5 7 5 3 Step 4 Add last carry to first digit. Note in this case last carry is 0 So 523 X 11 = 5753

Slide 4: 

Now take another number- 958 9 5 8 11 -------- 8 Write unit digit as it is 9 5 8 11 -------- 3 8 Add these two digits Here carry is “1” Step 1 Step 2 5 + 8 = 13

Slide 5: 

9 5 8 11 -------- 5 3 8 9 + 5 Here carry is “1” Step 3 9 5 8 11 ----------- 1 0 5 3 8 Step 4 So 958 X 11 = 10538 1 Previous carry 15 9 + 1 = 10 (Add last carry to first digit.)

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