What is 5 × 8?

What is 5 × 8?

• A. 60
• B. 25
• C. 40
• D. 80

Answer: (C)

Multiplication gives the total when you have a certain number of groups of the same size. Here you have five groups of eight. Adding eight five times (8 + 8 + 8 + 8 + 8) equals 40, and you can also see it as eight groups of five (5 + 5 + 5 + 5 + 5), which also totals 40. So the product is 40. The other numbers come from different groupings: 60 would be six groups of ten or five groups of twelve; 25 is five times five; 80 is eight times ten or five times sixteen. They do not match 5 × 8.

Multiplication gives the total when you have a certain number of groups of the same size. Here you have five groups of eight. Adding eight five times (8 + 8 + 8 + 8 + 8) equals 40, and you can also see it as eight groups of five (5 + 5 + 5 + 5 + 5), which also totals 40. So the product is 40. The other numbers come from different groupings: 60 would be six groups of ten or five groups of twelve; 25 is five times five; 80 is eight times ten or five times sixteen. They do not match 5 × 8.