Maths tricks multiply by 11
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1) To multiply a number by 11, write the last digit as is and add the remaining digits. 2) Carry the sum to the next column if it is greater than 10. 3) Add the last carried digit to the first digit of the original number. 4) This process is demonstrated by multiplying 523 and 958 by 11, correctly getting 5753 and 10538 respectively.
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Maths tricks multiply by 11
- 1. Maths Tricks …By YuvaLakshya TeamAll rights reserved
- 2. Multiply a number by 11 (eleven) 5 2 3 11--------3Write unit digit as it isStep 1Add these two digits 2+3 = 5 5 2 3 11-------- 5 3Step 2Here carry is “0”
- 3. Add these two digits 5+2=7 5 2 3 11---------753Step 3Here carry is “0” 5 2 3 11---------5 753Step 4Add last carry to first digit.Note in this case last carry is 0So 523 X 11 = 5753
- 4. Now take another number- 958 9 5 8 11 --------8Step 1Write unit digit as it isAdd these two digits 9 5 8 11 --------385 + 8 = 13Step 2Here carry is “1”
- 5. 15 1 9 + 5 9 5 8 11 --------538Previous carryStep 3Here carry is “1”9 + 1 = 10 (Add last carry to first digit.) 9 5 8 11 -----------1 0538Step 4So 958 X 11 = 10538