Multiplication by 5, step by step
The five times table has the most visible pattern of any table.
The question
8 × 5
8×5
8 × 5=5 × 8
5 × 5=25
5 × 3=15
25+15=40
8×5=40
- 8 × 5 means 8 groups with 5 in each one — 8 rows of 5. The answer counts everything in all of them, not one row.
- Added up, that is 5 written 8 times — nobody wants to do that. Turn it round: 5 × 8 is the same amount, and it is only 5 lots of 8 to add instead.
- If 5 × 8 will not come, split the 8 at five: 5 × 5 = 25, and 5 × 3 = 15. Together that is 25 + 15 = 40.
- So 8 × 5 = 40.
How it works.
- 01
8 × 5 means 8 groups with 5 in each one — 8 rows of 5. The answer counts everything in all of them, not one row.
- 02
Added up, that is 5 written 8 times — nobody wants to do that. Turn it round: 5 × 8 is the same amount, and it is only 5 lots of 8 to add instead.
- 03
If 5 × 8 will not come, split the 8 at five: 5 × 5 = 25, and 5 × 3 = 15. Together that is 25 + 15 = 40.
- 04
So 8 × 5 = 40.