Unit 1 Review 8th grade math

Front

Express 0.00025 in scientific notation.

Back

2.5 × 10^–4 pounds

Front

Classify the numbers –7, 8, –4 according to the chart: Irrational, Integers, Whole, Natural.

Back

Integers

Front

Whose scientific notation is correct for 4,300,000,000: Robert's (4.3 x 10^8) or Dora's (4.3 x 10^9), and why?

Back

Dora’s number is correct because when converting 4,300,000,000, the decimal would be located between the 4 and the 3, and the original decimal point in the standard form moves to the left 9 places.

Front

How is 0.005123 grams expressed in scientific notation?

Back

5.123 × 10^–3 grams

Front

A microscopic cell measures 3.8 × 10–4 centimeters in diameter. What is this number in standard decimal notation?

Back

0.00038

Front

The number 0 is located in which set of numbers? Options: Rational, Integer, Whole, Natural

Back

Whole

Front

List the numbers in order from the day of greatest increase in depth to the day of the greatest decrease in depth. Options: Tuesday, Thursday, Friday, Monday, Wednesday; Tuesday, Wednesday, Thursday, Friday, Monday; Tuesday, Thursday, Wednesday, Friday, Monday; Thursday, Tuesday, Wednesday, Monday, Friday.

Back

Tuesday, Thursday, Wednesday, Friday, Monday

Front

Write the following numbers in ascending order: –2 3/8, –0.85, 4/3, 1 2/5, –8/6, 0.8

Back

–2 3/8, –8/6, –0.85, 0.8, 4/3, 1 2/5

Front

Which number set represents Section A in the Venn diagram? Options: Rational, Real, Integers, Irrational

Back

Real

Front

A microscopic cell measures 3.8 x 10^-3 centimeters in diameter. What is this number in standard notation?

Back

0.0038