Powers of 10
11.8 / 101 = ?
1.18
Use an estimate to place the decimal point of each product.
10.2 x 2.1 = 2 1 4 2
21.42
Solve.
10. 2 x 2 = ?
20.4
Use the formula l x h x w = V
The length of the cube is 10 feet, it is 5 feet tall, and it is 2 feet wide. What is the volume in cubic feet?
100 ft3
Use the Emperor Penguin Heights chart to help.
What is the most common height of the Emperor Penguins? (Don't forget the label!)
50 inches
6.7 x 102 = ?
670
Use an estimate to place the decimal point of each product.
8.9 x 11.2 = 9 9 6 8
99.68
Solve.
11.4 x 8.1 = ?
92.34
B = 2,000 ft2
h = 800 ft
What is the volume?
1,600,000 ft3
Use the Emperor Penguin Chart to help.
What is the difference between the tallest penguin and the shortest?
9 inches
8.97 / 104 = ?
0.000897
Use an estimate to place the decimal point of each product.
32. 4 x 4.3 = 1 3 9 3 2
139.32
Solve
50.1 x 22. 1
1,107.21
An escape room is 30 feet long and 20 feet wide with ceilings that are 8 feet tall. What is the volume of the escape room?
_______ cubic feet
4,800 cubic feet
Use the Emperor Penguin chart to help.
What is the combined height of the 5 shortest penguins?
41 + 41 + 41.5 + 43 + 43 = 209.5 inches
Don't forget to include the commas in your final answer.
17.98 x 106
17,980,000
Use an estimate to place the decimal point of each product.
123.4 x 2.78 = 3 4 3 0 5 2
343.052
Make an estimate AND solve.
8.46 / 3 = ?
Estimate: 9/3 = 3
Answer: 2.82
A rectangular one-story apartment covers an area of 1,300 square feet. The ceilings are 9 feet high. What is the volume of the interior of the apartment? Solve.
_____ cubic feet
11,700 cubic feet
2.5 m
Solve and explain how you know the decimal point is placed there?
0.091 / 104 = ?
0.0000091
I decided I had to move the decimal place to the left, because it is division. Then I looked at the exponent and that told me to move the decimal four place values to the left to get my answer.
Use an estimate to place the decimal point of each product. THEN explain how you solved the problem.
256.5 x 4.89 = 1 2 5 4 2 8 5
1,254.285
First, I estimated 250 x 4 = 1,000, so I knew the answer would be in the thousands. Then I put the decimal between the 4 and the 2 because 1,254.285 is close to 1,000.
Estimate then solve.
2.79 / 0.9 = ?
Estimate: 30 / 10 = 3
Solution:3.1
Find the volume using the information below. Show your work.
You are finding the volume of a gym. The length is 525 feet long, the width is 20 feet and the ceilings are 40 feet tall. What is the volume of the gym?
420,000 ft3
Royce has a cough. His mother gave him 10 mL of cough syrup and 0.5 L of water. How many mL of liquid was Royce given in all?
1 L = 1,000 mL
0.5 L x 103 = 500 mL
500 mL + 10 mL = 510 mL