Comparing and Ordering Real Numbers in 8th Grade Math

This video tutorial by Mr. Weaver covers eighth grade module two, lesson five, focusing on comparing and ordering real numbers. It explains how to use rational approximations to compare and order real numbers, including irrational numbers. The lesson includes examples of comparing and ordering numbers using decimal approximations, graphing on a number line, and applying these skills to real-world scenarios like probability. The video emphasizes understanding decimal expansions and the importance of using original numbers for accurate comparisons.

What is the decimal approximation of 18/5?

• 3.6

• 3.14

• 3.2

• 3.32

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which of the following is the correct order from least to greatest for the numbers 18/5, pi, and the square root of 11?

• 18/5, pi, square root of 11

• square root of 11, pi, 18/5

• pi, square root of 11, 18/5

• pi, 18/5, square root of 11

Tags

CCSS.8.NS.A.2

What is the decimal approximation of the square root of 8?

• 2.6

• 2.8

• 2.4

• 2.7

Tags

CCSS.8.NS.A.2

Which symbol correctly completes the statement: square root of 8 ___ 2 and 2/3?

• >

• =

• ≤

• <

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the decimal approximation of negative pi/2?

• -1.57

• -2.4

• -3.14

• -1.75

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which symbol correctly completes the statement: negative square root of 6 ___ negative pi/2?

• <

• >

• =

• ≥

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

What is the decimal approximation of 5 and 4/5?

• 5.5

• 5.8

• 5.36

• 5.4

Which of the following is the correct order from least to greatest for the numbers square root of 30, 5 and 4/5, and 5.36 repeating?

• 5.36 repeating, square root of 30, 5 and 4/5

• square root of 30, 5.36 repeating, 5 and 4/5

• 5.36 repeating, 5 and 4/5, square root of 30

• 5 and 4/5, 5.36 repeating, square root of 30

Tags

CCSS.8.NS.A.2

What is the decimal approximation of 83 and 1/3 percent?

• 0.83

• 0.833

• 0.8333

• 0.83 repeating

On which day is there the greatest chance of rain if the probabilities are 83 and 1/3 percent, 9/10, and 6/7?

• All days have equal chance

• Friday

• Thursday

• Wednesday