Buzz
Solve Exercise 1 on pages 19 and 20 of Math 5 workbook practice. Inquire about the cost of buying 30 notebooks like that.
Guidance for solving Exercise 1 on pages 19 and 20 of Math 5 textbook
Problem statement:
Buying 12 notebooks costs 24,000 dong. Inquire about the cost of buying 30 notebooks like that.
Solution method:
- Calculate the cost of buying 1 notebook by dividing the total cost of buying 12 notebooks by 12.
- Calculate the cost of buying 30 notebooks by multiplying the result obtained in the previous calculation by 30.
Answer:
Buying 1 notebook costs:
24,000 : 12 = 2,000 (dong)
Buying 30 notebooks will cost
