How do you divide one number by another? Select which type of division you would like to see demonstrated.
Short division
Step 1
How do you divide one number by another? Divide 81 by 3.
Step 2
Set the calculation out properly.
Step 3
3 will go into 8 twice. Write 2 down immediately under the 8.
2 x 3 = 6 and 8 – 6 = 2, so the remainder is 2. Place the remainder up above the line next to the next digit. There are now 21 UNITS.
Step 4
Continue the division process. Divide 3 into 21.
It will go 7 times exactly. Write 7 down under the 1. The answer is 27.
Long division
How do you divide one number by another? Divide 748 by 51.
Step 1
Set the calculation out properly.
Step 2
51 will not go into 7, but it will go into 74. Write how many times it goes into 74 (1) in the TENS column.
Write 1 x 51 = 51 under 74 so we can calculate the remainder.
Step 3
Subtract 51 from 74 to get the remainder, which is 23.
Step 4
Bring the 8 down from the original number to the end of the remainder to make 238 UNITS.
Step 5
Now divide 238 by 51.
How many times does 51 go into 238? The answer is 4 times. Write this in the UNITS column at the top.
Multiply 51 x 4 = 204 and write this under 238 so we can calculate the remainder.
Step 6
Subtract 204 from 238. The remainder is 34 UNITS.
How many rings 51mm wide can we cut from a metal cylinder 748mm long?
The answer is 14 with a remainder of 34mm.
