Practice the questions of **McGraw Hill Math Grade 8 Answer Key PDF Lesson 12.1 Negative Numbers **to secure good marks & knowledge in the exams.

## McGraw-Hill Math Grade 8 Answer Key Lesson 12.1 Negative Numbers

**Exercises**

**CALCULATE**

Question 1.

On the number line, place and label the number values as points on the number line.

A (-1), B (1), C (-2.5), D (1.5), E (-8), F (-8.5), G (-4.5)

Then order values from least to greatest.

Answer:

Order is F(-8.5),E(-8),G(-4.5),C(-2.5),A(-1),B(1),D(1.5),

Explanation:

Placed on the number line, placed and labelled the number values as points on the number line. A (-1), B (1), C (-2.5), D (1.5), E (-8), F (-8.5), G (-4.5)

The order values from least to greatest are as F(-8.5) < E(-8) < G(-4.5) < C(-2.5) < A(-1) < B(1) < D(1.5), therefore order is F(-8.5),E(-8),G(-4.5),C(-2.5),A(-1),B(1),D(1.5).

Question 2.

Order the number values from greatest to least.

4.6, -6.6, -6, -6.7, -4.3, 3, 3.3, -3.3, 8, -8.1

Answer:

Greatest to least:

8, 4.6, 3.3, 3, -3.3, -4.3, -6, -6.6, -6.7, -8.1,

Explanation:

Given to find the order of number values 4.6, -6.6, -6, -6.7, -4.3, 3, 3.3, -3.3, 8, -8.1 from greatest to least as 8 > 4.6 > 3.3 > 3 > -3.3 > -4.3 > -6 > -6.6 > -6.7 > -8.1, therefore greatest to least numbers are

8, 4.6, 3.3, 3, -3.3, -4.3, -6, -6.6, -6.7, -8.1.

**Use >(is greater than), < (is less than), or = (is equal to) in comparing the number value pairs.**

Question 3.

-4.5 ____4.5

Answer:

< (is less than),

Explanation:

Given to compare -4.5 and 4.5 as the number value pairs -4.5 < 4.5,

so it is <(less than).

Question 4.

-3.3 ____________ -3.0

Answer:

< (is less than),

Explanation:

Given to compare -3.3 andÂ -3.0 as the number value pairs -3.3 < -3.0,

so it is < (is less than).

Question 5.

7.5 __________ -7.5

Answer:

> (is greater than),

Explanation:

Given to compare 7.5 and -7.5 as the number value pairs 7.5 > -7.5,

so it is > (is greater than).

Question 6.

–7.5 _______ 1.5

Answer:

< (is less than),

Explanation:

Given to compare -7.5 and 1.5 as the number value pairs -7.5 < 1.5,

so it is < (is less than).

Question 7.

-6.1 __________ -6.25

Answer:

> (is greater than),

Explanation:

Given to compare -6.1 and -6.25 as the number value pairs -6.1 > -6.25,

so it is > (is greater than).

Question 8.

-5 ___________ -4.95

Answer:

< (is less than),

Explanation:

Given to compare -5 and -4.95 as the number value pairs -5 < -4.95,

so it is < (is less than).

Question 9.

13.9 __________ 13.9

Answer:

= (equal to),

Explanation:

Given to compare 13.9 and 13.9 as the number value pairs 13.9 = 13.9,

so it is = (equal to).

Question 10.

-9 ___________ 9

Answer:

< (is less than),

Explanation:

Given to compare -9 and 9 as the number value pairs -9 < 9,

so it is < (is less than).

Question 11.

-8 __________ -.888

Answer:

< (is less than),

Explanation:

Given to compare -8 and -.888 as the number value pairs -8 < -.888,

so it is < (is less than).