AnswersSY2025-26 - 1205040 MJ Grade 7 Mathematics Sem 1 CRUnit Test

Solving Problems Involving Decimals Answers

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A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?

A
0.6 feet
B
25 feet
C
25.6 feet
D
256 feet
2
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Renaldo will write as a decimal. Which of the following methods should he use?

Question illustration
A
Multiply the fraction by to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Option A
B
Multiply the fraction by to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Option B
C
Multiply the fraction by to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
Option C
D
Multiply the fraction by 33.3 to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
3

Holly says 4.131131113... is a rational number. Which of the following best describes whether Holly is correct and why??

A
Holly is correct. Repeating decimals are always rational numbers.
B
Holly is correct. The number is positive and all positive numbers are rational.
C
Holly is incorrect. The decimal does not terminate, so it cannot be a rational number.
D
Holly is incorrect. The decimal part follows a pattern but does not actually repeat.
4

A thermometer shows a temperature of degrees. A chemist recorded this temperature in her notebook using a decimal. Which number did the chemist write in the notebook?

Question illustration
A
Negative 21.ModifyingAbove 4 with bar
Option A
B
Negative 21.ModifyingAbove 3 with bar
Option B
C
Negative 20.75
Option C
D
Negative 20.34
Option D
5

Vanessa and Zack are playing a game where the player with the lower score wins. At the end of the game, Vanessa has a score of and Zack has a score of . Which statement explains who won?

Question illustration
A
Comparing the decimal equivalents of their scores shows that Vanessa won because –3.625 is less than .
Option A
B
Comparing the decimal equivalents of their scores shows that Vanessa won because is less than –3.625.
Option B
C
Comparing the decimal equivalents of their scores shows that Zack won because –3.625 is less than .
Option C
D
Comparing the decimal equivalents of their scores shows that Zack won because is less than –3.625.
Option D
6

Which two points on the number line represent numbers that can be combined to make zero?

Question illustration
A
B and D
B
A and B
C
C and D
D
A and C
7

George is comparing two different phones. The screen of phone A has a width of 5.3 cm. The width of the screen on phone B is cm. Which statement explains which phone has the wider screen?

Question illustration
A
The screens have the same width.
B
Screen A is wider, because .
Option B
C
Screen B is wider, because .
Option C
D
Screen B is wider, because .
Option D
8

Which point on the number line could represent ?

Question illustration
A
A
B
B
C
C
D
D
9

Kailey correctly graphed the opposite of –3.3 on the number line. Which point could be the point Kailey graphed?

Question illustration
A
A
B
B
C
C
D
D
10

A recipe shows that the yeast needed for a bread recipe is ounces. Which of the following decimals is equivalent to this number?

Question illustration
A
2.13
Option A
B
2.3
Option B
C
2.ModifyingAbove 3 with bar
Option C
D
3.2
Option D

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