domingo, 21 de octubre de 2007

Problems withs natural numbers (1)


1- There can be 39 students in the Computer class. The class has 14 boys and 17 girls. How many more students can join the class?

2- A pair of shoes cost $10 and a pair of sandals cost $8. What is the total cost of 3 pair of shoes and 4 pair of sandals?

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