1. What multiplication sentence can help you find the missing number?

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   4\;\times\;?=28\;\text{or}\;?\times4=28

2. What is the missing number? 

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   7.

3. What does 7 represent in this problem? 

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   There are 7 marbles in each bag.

4. How could a student use the distributive property to arrive at the answer? Start by breaking 28 into 20+8.

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   20+8 = (4\times5)+(4\times2) = 4\times7.

5. How many marbles would be in each bag if we had 280 marbles? 2800? How do you know? 

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   70 in each bag for 280 marbles; 700 in each bag for 2800 marbles. The dividends are 10 times bigger, so the quotients will be 10 times bigger, too.

6. Let's say I have some marbles and 8 bags. Each bag has 12 marbles in it. How many marbles do I have altogether?

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   96 marbles.

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