Real Numbers

Real Numbers

8th Grade

9 Qs

quiz-placeholder

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Real Numbers

Real Numbers

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

CCSS
8.EE.A.3, 8.NS.A.1, 6.NS.C.7A

+3

Standards-aligned

Created by

Anthony Clark

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which number is irrational?

9.6

√45

3/8

3.4 x 10 ⁵

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which number is a rational number ?

1/4

π

√3

∛25

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Lucy estimated that it would take 4,000 grains of sand to make a pound. That would mean that each grain of sand weighs 1/4000 of a pound. In decimal form, that weight would be 0.00025 of a pound. Express this in scientific notation?

2.5 × 10–4 pounds

4 × 10–3 pounds

2.5 × 10–3 pounds

2.5 × 10–5 pounds

Tags

CCSS.8.EE.A.3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Robert and Dora need to write 4,300,000,000 using scientific notation. Robert claims that 4,300,000,000 = 4.3 x 108 and Dora claims that 4,300,000,000 = 4.3 x 109. Whose number is correct and why?

Robert’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 8 places.

Robert’s number is correct because when converting 4,300,000,000, the decimal would be located between the 4 and the 3, and the power of 10 is determined by the number of zeros.

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.

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 power of 10 is always the number of zeros plus 1.

Tags

CCSS.8.EE.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Write the following numbers in ascending order.

–2 3/8, –8/6, –0.85, 0.8, 4/3 , 1 2/5

–8/6, –0.85, 0.8, 4/3 , 1 2/5, –2 3/8

–2 3/8, 1 2/5, 4/3 , 0.8, –0.85, –8/6

1 2/5, 4/3 , 0.8, –0.85, –8/6, –2 3/8

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

List the numbers in order from GREATEST to LEAST?

Media Image
Media Image
Media Image
Media Image

Tags

CCSS.8.NS.A.2

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following could be the missing value?

√26

√29

√35

√40

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