Multiplication and division facts, step by step
Multiplication and division are one fact family read from two ends.
The question
11 × 5
11×5
11 × 5=5 × 11
5 × 5=25
5 × 6=30
25+30=55
11×5=55
- 11 × 5 means 11 groups with 5 in each one — 11 rows of 5. The answer counts everything in all of them, not one row.
- Added up, that is 5 written 11 times — nobody wants to do that. Turn it round: 5 × 11 is the same amount, and it is only 5 lots of 11 to add instead.
- If 5 × 11 will not come, split the 11 at five: 5 × 5 = 25, and 5 × 6 = 30. Together that is 25 + 30 = 55.
- So 11 × 5 = 55.
How it works.
- 01
11 × 5 means 11 groups with 5 in each one — 11 rows of 5. The answer counts everything in all of them, not one row.
- 02
Added up, that is 5 written 11 times — nobody wants to do that. Turn it round: 5 × 11 is the same amount, and it is only 5 lots of 11 to add instead.
- 03
If 5 × 11 will not come, split the 11 at five: 5 × 5 = 25, and 5 × 6 = 30. Together that is 25 + 30 = 55.
- 04
So 11 × 5 = 55.