Estimating the Product
Estimate the product of 8.7 x 2.8
9 x 3 = 27
0.6 x 8
4.8
10^2 X _____ = 29
10^4 X ____ = 2,900
What number fits in both equations to make them true?
2.9
Oranges cost $0.5 each. How much will 700 oranges cost?
0.5 x 700 = $350
The length of the garden is 22.3 feet and the width is 3.5 feet. What is the area? Write an equation and solve.
22.3 X 3.5 = 78.05 square feet
5.23 X 10,000
52,300
A rectangular piece of gift wrap is 200 inches by 2 inches. What is the area of the gift wrap. Remember A= L x W
400 square inches
I hiked 4.35 miles. My sister hiked 3 times as far as me. How far did she hike? Write an equation that represents this situation and solve.
4.35 X 3 = 13.05 miles
1,000 x 3.9
3900
Katelyn has a vegetable garden that measures 6.7 feet by 300 feet. What is the area? A = L x W.
300(6) +300(.7) = 2010 square feet
If Gabe bought 80 ounces of oranges and they cost $1.30 per pound, how much does Gabe spend?
Remember that there are 16 ounces in 1 pound! Think about how many pounds he bought!
$6.50
1.2 + .75 = 1.95 hours a day
1.95 X 31 days = 60.45 hours
.0544 X 10^3
54.4
A giraffe can run up to 300 feet per second. How far could a giraffe run in 1.8 seconds.
540
.06 X .5 =
0.03
You plan to carpet four bedrooms. Each bedroom's dimensions are 7.2 feet long and 5.8 feet wide. Estimate the total area of carpet you need to order. Write equations to model this.
7 X 6 = 42 (for one bedroom)
42 X 4 = 168 square feet
I talk on the phone for 15 minutes. I am charged $0.49 per minute. How much does my phone call cost?
$7.35
0.65 x 1,000
650
Where should the decimal point be placed in the problem: 23.24x 3.12 =725088
72.5088
A bowling alley charges 152.50 for one hour of renting it out! If you want to have a three hour party. How much will you owe?
3 X 152.50 = $457.50