Alg. 1 Measurement Quiz

1. Katie measured two pieces of yarn. Piece A is 30.15 cm long, and piece B is 12.8 cm long. Katie needs to calculate the difference in the lengths. How many significant digits will be in her answer?

A) 4
B) 2
C) 3
D) 1

2. For an experiment, Bailey needs to calculate the product of 81 and 0.00075 mg. She needs to reflect the precision of the measurement using significant digits. What will her answer be?

A) 0.00675
B) 0.06075
C) 0.06
D) 0.07

3. Which of the following statements are false?

A) Zeros between the decimal point and a non-zero digit are significant.
B) Non-zero digits are always significant.
C) All zeros between other significant digits are significant.
D) Zeros that follow non-zero digits to the right of the decimal point are significant.

4. The actual distance from Point A to Point B is 9.25 miles. Danny measures the distance at 9.16 miles, while Jacob measures it at 9.31 miles. Whose measurement is most accurate?

5. Calculate using the correct number of significant digits: 3.8 + 5.00 + 6.3

A) 15.1
B) 15
C) 14.11
D) 15.01

6. Calculate using the correct number of significant digits: 25 / 29.8

A) 0.838
B) 1.0
C) 0.838926174
D) 0.84

7. How many inches long is a 24-foot room?

8. How many hours is a 150-minute train ride?

9. High-speed trains travel at about 270 kilometers per hour. What is this speed in meters per second?

10. A car carrier weighs 5 tons when empty. Each of its cars weighs 1.75 tons. What is the maximum number of cars it can carry, and still be able to cross a bridge with a 15-ton weight limit?

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