Divide to solve
- POSTED ON: 7 Apr, 2020
- TOTAL VIEWS: 603 Views
- POSTED BY: Archana Subramanian
- ARTICLE POINTS: 100 Points
We all know division. Here are a few tips to always remember.
Number tricks
Divide by 1 – Anytime you divide by 1, the answer is the same as the dividend.
Divide by 2 – If the last digit in the number is even, then the entire number is divisible by 2. Remember that divide by 2 is the same as cutting something in half.
Divide by 3- If we add up the digits in the number and if the answer can be divided by 3 without a remainder, it is divisible by 3. For example, if we take the number 105, and add 1+0+5 = 6. 6 is divisible by 3, therefore 105 is divisible by 3.
Divide by 4 – If the last two digits divide by 4, then the entire number is divisible by 4. For example, we know that 14237732 can be divided evenly by 4 because 32 ÷ 4 = 8.
Divide by 5 – If the number ends in a 5 or a 0, it is divisible by 5.
Divide by 6 – If the rules for divide by 2 and divide by 3 above are true, then the number is divisible by 6.
Divide by 9 – Similar to the divide by 3 rule, if the sum of all the digits is divisible by 9, then the entire number is divisible by 9. For example, we know that 18332145 is divisible by 9 because 1+8+3+3+2+1+4+5 = 27 and 27 ÷ 9 = 3.
Divide by 10 – If the number ends in a 0, then it is divisible by 10.
Now that you know these tricks. Try solving these sums.