Arithmetic Grade Four

Lesson One hundred and eighty: Word Problems

This bunch of word problems will involve the cost and duration. Duration is a word which means more or less HOW LONG SOMETHING LASTS. For instance, consider the following problem. 


    Sue gets paid $4 per hour for raking leaves.
    How much will she get paid for raking leaves
    for 3 hours?
To find the answer we simply multiply $4 per hour by 3 hours: 

        4 dollars per hour * 3 hours = 12 dollars
Here's another example: 

    Jim gets paid $2 per hour for watering the grass.
    How much will he get paid for watering the grass
    for 2 hours?
This is a simple multiplication problem: 

        2 dollars per hour * 2 hours = 4 dollars
Now you get to try some of these.

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