# Mathematics Quiz: Significant Figures Questions

10 Questions | Total Attempts: 17392  Settings  In the study of mathematics, the term ‘significant figure’ refers to each of the digits of a number that is used to express it to the specified degree of accuracy, beginning from the first digit that isn't zero. For example, pi has an infinite number of significant figures but is often rounded to just three, i. E. , 3. 14. What else can you tell us about these substantial figures and what they mean? Let’s find out.

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• 1.
How many significant figures in 504? Hint: All non-zero digits are significant. Zeros between digits are significant. Remember these rules -- you will not get hints as the quiz progresses!
• A.

1

• B.

2

• C.

3

• D.

4

• 2.
How many significant figures in 5040 toys?  Zeros at the end of a counted quantity are not significant. Remember this rule -- you will not get hints as the quiz progresses!
• A.

2

• B.

3

• C.

4

• D.

5

• 3.
How many significant figures in a substance with a mass of 504.30 grams? Hint:   Zeros at the end of a number that represents a measured quantity is a significant digit. Zeros to the right of a decimal point show how accurate a measurement is taken and are significant. Remember this rule -- you will not get hints as the quiz progresses!
• A.

3

• B.

4

• C.

5

• D.

6

• 4.
How many significant figures in a substance with a mass of 0.034 grams? Hint: Zeros in front of a number are not significant.
• A.

1

• B.

2

• C.

3

• D.

4

• 5.
How many significant figures in a substance with a mass of 0.0504 grams?
• A.

5

• B.

4

• C.

3

• D.

2

• 6.
How many significant figures in a substance with a mass of 0.07080 grams?
• A.

3

• B.

4

• C.

5

• D.

6

• 7.
• A.

7

• B.

6

• C.

5

• D.

4

• 8.
Add the following and answer with the correct number of significant figures: 13.4 + 2.42 =   Addition/Subtraction:  answer must have the same number of decimal places as the measurement with the least number of decimal places .
• A.

15.82 (4 significant figures)

• B.

15.8 (3 signficiant figures)

• 9.
Add the following and answer with the correct number of significant figures: 3.01 + 2.32+ 5.1 =
• A.

10.4 (3 significant figures)

• B.

10.43 (4 signficant figures)

• C.

10. (2 signficant figures)

• 10.
Multiply the following. Answer with the correct number of significant figures. 13.023  x 123.1 = __   Multiplication/Division: Answer must have the same number of sig figs as the measurement with the least number of sig figs.
• A.

1603.1313 (8 significant figures)

• B.

1603.1 (5 significant fiures)

• C.

1603 (4 significant figures)

• D.

1603.13 (6 signficant figures)