By Powers of 10
0.5 x 10
5
0.3 × 4
1.2
0.5 × 0.4
0.20
A pencil costs $1.25. If Sarah buys 4 pencils, how much does she spend in total?
Sarah spends $5.00.
Write the following number in standard form:
three million, seven hundred sixty-five thousand, ninety-nine
3,765,099
1.9 x 102
190
2.75 × 8
22.0
1.2 × 0.6
0.72
A bottle of juice contains 0.75 liters. If Mark drinks 3 bottles, how many liters of juice does he drink in total?
Mark drinks 2.25 liters of juice.
A box can hold 24 chocolates. If a factory produces 15 boxes, how many chocolates does the factory produce in total?
The factory produces 360 chocolates.
4.56 x 10,000
45,600
1.5 × 6
9.0
2.5 × 1.3
3.25
A fabric store sells fabric for $6.50 per meter. If Jenny buys 2.5 meters of fabric, how much does she pay?
Jenny pays $16.25.
Emily bought 3.5 yards of fabric for $8.75 per yard. How much did she spend in total? (Round to the nearest cent.)
Emily spent $30.63.
78.9 x 103
78,900
3.6 × 12
43.2
3.75 × 2.2
8.25
A recipe requires 0.4 cups of sugar for one batch of cookies. If Emma wants to make 3.5 batches, how many cups of sugar does she need?
Emma needs 1.4 cups of sugar.
A recipe requires 2.5 cups of flour. If you only have 1.75 cups, how much more flour do you need to buy?
You need to buy 0.75 cups of flour.
0.0058 x 102
0.58
4.25 × 15
63.75
4.8 × 3.6
17.28
A car travels an average of 27.5 miles per gallon of gas. If it uses 12.4 gallons of gas on a trip, how many miles does the car travel?
The car travels 341.0 miles.
A store has a sale on sweaters, with each sweater priced at $34.99. If a customer wants to buy 4 sweaters and has a coupon for $10 off the total purchase, what will be the final cost?
The final cost is $129.96.