Powers of 10
What is 0.06 × 102?
6
Todd wants to buy 6 video games that cost $5.85 each.
About how much money will he need to pay for the video games?
$36
410 x 0.6 =
246
Solve the expression 0.6 × 0.4
0.24
Ava read on the wrapper that a candy bar has 12.5 g of fat. One gram of fat supplies 9.4 calories.
How many calories in the candy bar are from fat?
117.5
Use mental math to find the product 12.56 × 100.
1256
Which of the following is the best estimate for the product 50 × 2.8
150
28.5 x 7=
199.5
Which choice shows the proper placement of the decimal in the product 5.4 × 10.8?
A. 0.5832
B. 5.832
C. 58.32
D. 583.2
C. 58.32
Marissa has 2.5 hours of swim practice per day. She practices 4 days per week. The swimming season is 14 weeks long.
How many total hours of swimming practice does Marissa have in one swimming season?
140 hours
Use mental math to find the product.
5.23 × 100
523
Which of the following is the best estimate of the product 79.87 × 15?
80 x 15 = 1200
Leslie and her friend eat lunch at a restaurant.
To determine how much money to leave as a tip, she multiplies the bill by 0.18.
How much money should she leave as a tip if the bill is $25?
$4.50
Find the product of 1.6 and 3.4.
5.44
Lindsay is going on vacation for 2.5 weeks. While she is gone she pays a dog-sitter $25.50 a day to watch her dog. How much will she spend on dog sitting during her vacation?
$446.25
Use mental math to find the product.
0.34 × 103
340
Estimate the product: 19.5 x 6
120
Find the product: 42.6 × 15
639
An apple farmer has planted 0.3 of his orchard with cherry trees. The orchard is 8.59 acres in size. How many acres are planted with cherry trees?
2.577
Sports drinks come in 0.5 liter and 1.5 liter bottles.
Frank purchased 7 of the 0.5-liter bottles and 11 of the 1.5 liter bottles for a soccer team.
How many liters of sports drink did Frank purchase?
20 Liters
A manufacturer sells bolts in packages of 1,000 bolts.
If a particular type of bolt has a mass of 4.23 grams, what is the mass of a package of 1,000 bolts?
4230 grams
Estimate the product of 966 and 0.46
1000 x 0.46 = 460
Langston is selling candles for a band fundraiser.
He sells 21 candles that cost $8.25 each.
How much money does Langston earn for the fundraiser?
$173.25
Courtney’s soccer team drank 20.5 bottles of juice after a game. Each bottle contained 0.5 liters of juice. How many liters of juice did they drink in all?
10.25
During a 5-day sale, a store sold 56 shirts and 34 pairs of pants.
The average cost of a shirt is $27.45 and the average cost of a pair of pants is $30.00.
How much money did the store make on shirts and pants in 5 days?
$2557.20