Mental Math: Estimate Quotients

1. Tisha collects old books. She has 2 shelving units, and each shelving unit has 3 shelves. Each shelf holds 12 books . If both shelving units are filled with books, how many books does Tisha have in all?

2. Shannon delivered 135 blueberry muffins to each of 7 restaurants. How many muffins did Shannon deliver?

4. Larry reads the same number of pages each night. After 7 nights , he has read a total of 140 pages. How many pages did Larry read of his book each night?

5. The cafeteria ordered 23 boxes of peach yogurt and 57 boxes of raspberry yogurt. Each box contained 6 cups of yogurt. How many cups of yogurt did the cafeteria order?

What compatible numbers can you use to estimate 132   $\div$  6?

Why is rounding not a good way to estimate 132   $\div$  6?

In the problem on the previous page, if Max uses 80 rubber bands to make each ball, will Max be able to make more or fewer balls than he wanted?

Max decides to use 700 rubber bands to make 8 balls. Is it reasonable to say he would use about 90 rubber bands to make each ball? EXPLAIN.

 $48\ \div5$  

 $235\ \div8$  

 $547\ \div6$  

 $192\ \div5$  

 $662\ \div8$  

 $362\ \div3$  

 $41\ \div2$  

 $211\ \div4$