Open Up - Grade 8 - Mathematics - Unit 7 - Lesson 9
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Last updated about 3 years ago
16 Questions
1 point
1
Question 1
1.
Match each number to its name.
Match each number to its name.
| arrow_right_alt | 1,000,000 | |
| arrow_right_alt | 0.01 | |
| arrow_right_alt | 1,000,000,000 | |
| arrow_right_alt | 0.000001 | |
| arrow_right_alt | 0.001 | |
| arrow_right_alt | 10,000 |
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 2
2.
Write each expression as a multiple of a power of 10:
42,300
Write each expression as a multiple of a power of 10:
42,300
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 3
3.
Write each expression as a multiple of a power of 10:
2,000
Write each expression as a multiple of a power of 10:
2,000
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 4
4.
Write each expression as a multiple of a power of 10:
9,200,000
Write each expression as a multiple of a power of 10:
9,200,000
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 5
5.
Write each expression as a multiple of a power of 10:
Four thousand
Write each expression as a multiple of a power of 10:
Four thousand
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 6
6.
Write each expression as a multiple of a power of 10:
80 million
Write each expression as a multiple of a power of 10:
80 million
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 7
7.
Write each expression as a multiple of a power of 10:
32 billion
Write each expression as a multiple of a power of 10:
32 billion
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 8
8.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
There are about 37 trillion cells in an average human body.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
There are about 37 trillion cells in an average human body.
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 9
9.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
The Milky Way contains about 300 billion stars.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
The Milky Way contains about 300 billion stars.
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 10
10.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
A sharp knife is 23 millionths of a meter thick at its tip.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
A sharp knife is 23 millionths of a meter thick at its tip.
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
1
Question 11
11.
Each statement contains a quantity. Rewrite each quantity using a power of 10.
The wall of a certain cell in a plant is 4 nanometers thick. (A nanometer is one billionth of a meter.)
Each statement contains a quantity. Rewrite each quantity using a power of 10.
The wall of a certain cell in a plant is 4 nanometers thick. (A nanometer is one billionth of a meter.)
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 12
12.
A fully inflated basketball has a radius of 12 cm. Your basketball is only inflated halfway. How many more cubic centimeters of air does your ball need to fully inflate?
Estimate how many cubic centimeters this is by using 3.14 to approximate π. (Estimate to the nearest hundreth.)
A fully inflated basketball has a radius of 12 cm. Your basketball is only inflated halfway. How many more cubic centimeters of air does your ball need to fully inflate?
Estimate how many cubic centimeters this is by using 3.14 to approximate π. (Estimate to the nearest hundreth.)
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 13
13.
Solve each of these equations.
2(3-2c)=30
Solve each of these equations.
2(3-2c)=30
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 14
14.
Solve each of these equations. 3x-2=7-6x
Solve each of these equations.
3x-2=7-6x
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 15
15.
Solve each of these equations.
31=5(b-2)
Solve each of these equations.
31=5(b-2)
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
1 point
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Question 16
16.
Graph the line going through (-6,1) with a slope of \frac{-2}{3} and write its equation.
Graph the line going through (-6,1) with a slope of \frac{-2}{3} and write its equation.
8.EE.4
8.EE.3
5.NBT.2
5.NBT.3.a
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