Multiplying Decimals

Explain how finding a whole number estimate before you multiply the decimals can help you make sure your decimal placement is correct.

Clare went to Party City to buy goodies to give out at her birthday party. She bought 15 erasers at 75 cents each. How much did the erasers cost altogether?

Every week, Darlene spends $46.89 on gas. How much would she spend on gas over a 5-week period?

1. Michael Phelps can swim the 100m freestyle in 47.5l seconds. If he swims this same that exact time 8 times in his career, how many seconds would that be total?

23 × 3.4

6.5 × 9.8

5.6 x.42

79 x.95

Jeremiah's pitcher can hold 14.5 ounces of lemonade. If he makes 8 pitchers for his lemonade stand, how many ounces will he have total?

Jeremiah earned .25 per ounce of lemonade sold. If he sold all his lemonade, how much money did he make?