This homework asks students to solve word problems involving multiplication and division of money.

Here are the solutions to the word problems:

b) A shoe shop sells all pairs of shoes for R82. My mother and sister bought 9 pairs altogether. How much did they pay?
i. What is the question? How much did they pay?
ii. What are the numbers? R82 and 9.
iii. What is the key word? "9 pairs altogether" (tells me to multiply the price per pair by the number of pairs).
iv. What is the number sentence?

$$\text{R}82 \times 9 = \square$$

v. Solve it:

$$\text{R}82 \times 9 = \text{R}738$$

vi. Write a sentence: They paid R738 altogether.

c) The bookshop sold 8 books for R500. How much did each book cost?
i. What is the question? How much did each book cost?
ii. What are the numbers? 8 books and R500.
iii. What is the key word? "each" (tells me to divide).
iv. What is the number sentence?

$$\text{R}500 \div 8 = \square$$

v. Solve it:

$$\text{R}500 \div 8 = \text{R}62.50$$

vi. Write a sentence: Each book cost R62.50.

d) My teacher bought 7 story books for R69 each. How much did she pay for all the story books?
i. What is the question? How much did she pay for all the story books?
ii. What are the numbers? 7 story books and R69.
iii. What is the key word? "each" (tells me the price per item) and "all" (tells me to find the total, implying multiplication).
iv. What is the number sentence?

$$\text{R}69 \times 7 = \square$$

v. Solve it:

$$\text{R}69 \times 7 = \text{R}483$$

vi. Write a sentence: She paid R483 for all the story books.