Using short and long division to divide by a 2-digit divisor
I can use short and long division to divide by a 2-digit divisor.
Using short and long division to divide by a 2-digit divisor
I can use short and long division to divide by a 2-digit divisor.
Lesson details
Key learning points
- Long division records the subtraction as a calculation underneath the dividend.
- Long division records the regrouping alongside the subtraction.
- There are similarities and differences between long and short division.
Common misconception
Pupils may not unitise when using long division and make errors (e.g. when dividing 7 hundreds by 12).
Explain to pupils that they are looking for multiples of the divisor (1 hundred × 12 = 1,200). This becomes clearer when dividing the tens digits (6 tens × 12 = 72 tens).
Keywords
Estimate - Estimate means to find a value that is close enough to the right answer, usually with some thought or calculation involved.
Long division - Long division is a method used for dividing large numbers by breaking the number down into smaller groups.
Remainder - A remainder is an amount left after a division.
Equipment
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
The amount that you want to divide.
The number we divide by.
The result after division has taken place.
Exit quiz
6 Questions
120 ÷ 10 = 12
24 ÷ 2 = 12
48 ÷ 4 = 12
240 ÷ 20 = 12
288 ÷ 24 = 12
