Missing number division
The question
55 ÷ ? = 11
55÷?=11
55÷?=11
55÷11=5
55÷5=11
- The gap is not at the end this time — the ANSWER is already there. What is missing is one of the two numbers going in, so the sum cannot just be worked left to right.
- 55 shared out gave 11 each time, so the number of groups is the other half of that same fact: 55 ÷ 11.
- Put it back in to be sure: 55 ÷ 5 = 11. It holds, so the missing number is 5.
How it works.
- 01
The gap is not at the end this time — the ANSWER is already there. What is missing is one of the two numbers going in, so the sum cannot just be worked left to right.
- 02
55 shared out gave 11 each time, so the number of groups is the other half of that same fact: 55 ÷ 11.
- 03
Put it back in to be sure: 55 ÷ 5 = 11. It holds, so the missing number is 5.