Grouping and Sharing (Multiplication and Division) — Important Questions

5 + 5, 2 groups of 5, 2 × 5

The chapter shows that multiplication can be written as repeated addition or as groups. For 2 × 5, we have 2 groups of 5, which is 5 + 5 = 10. So the correct ways are the ones that mean two groups of five.

3 × 5, 5 × 3, 15 ÷ 1, 30 ÷ 2

3 × 5 = 15, 5 × 3 = 15, 15 ÷ 1 = 15, and 30 ÷ 2 = 15. But 2 × 7 = 14, not 15.

30

5 bags with 6 candies each means 5 × 6 = 30 candies. We can count: 6 + 6 + 6 + 6 + 6 = 30.

5

20 ÷ 4 = 5. When 20 books are arranged in 4 equal rows, each row has 5 books. Check: 5 × 4 = 20.