Student Test Form
Grade 8 Mathematics Testlet – Expressions and Equations
Student Name:
teacher name:
date:
For each question, choose the correct answer. Then completely fill in the circle for the answer you chose.
104081A Multiple Choice A In Development
104083A Multiple Choice A Common
1. Which of the following is equivalent to this
expression?
3. Which number cannot be written in the
p
form q , where p and q are integers?
53 • 73
�
2
A
�
9
B
–4
C
1.7
D
353
A
356
B
359
C
3512
D
104092A Multiple Choice B Common
2. The mass of an electron is approximately
9.109 × 10–31 kilograms. Which of the
following is closest to that number?
1 × 10–29
A
1 × 10–30
B
1 × 10–31
C
1 × 10–32
D
1
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Grade 8 Mathematics Testlet – Expressions and Equations
For each short-answer question, show your thinking in the box labeled “Show your work here” and write
your answer in the box labeled “Answer.”
105299A Short Answer In Development
105292A Short Answer In Development
4. One sample of ammonia has a mass of
17 grams and contains 6.02 × 1023 atoms of
nitrogen. How many atoms of nitrogen are
in 1 gram of ammonia? Write your answer
in scientific notation, rounding the first factor
to the tenths place.
6. The relationship between V, the volume of a
cube, and E, the length of each edge of the
cube, is shown below.
Show your work here:
3
V=E
E
Answer:
What is the length, in inches, of each edge of
a cube that has a volume of 64 cubic inches?
Show your work here:
105296A Short Answer In Development
5. A scientist measured the mass of a grain of
sand to be 8.5 × 10–4 gram. Write 8.5 × 10–4
as a number in standard form.
Answer:
Show your work here:
Answer:
2
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Grade 8 Mathematics Testlet – Expressions and Equations
For this question, write your answer to each part in the box provided. Be sure to show your work or
explain your answer.
104425A Constructed Response In Development
7. a.The planet Neptune is about 4.5 billion kilometers from the sun. Write this distance in scientific
notation.
b.Earth is about 149,600,000 kilometers from the sun. How many more kilometers from the sun
is Neptune than Earth? Write your answer in scientific notation. Show your work or explain how
you know.
c.The mass of Earth is about 5.9722 × 1024 kilograms. The mass of Jupiter is about 1.8981 × 1027
kilograms. Estimate how many times greater the mass of Jupiter is than the mass of Earth. Show
your work or explain how you determined your estimate.
3
©2012 Measured Progress. All rights reserved.