Squaring a Number

Squaring a Number

8th Grade

13 Qs

quiz-placeholder

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Squaring a Number

Squaring a Number

Assessment

Quiz

Mathematics

8th Grade

Easy

Created by

Nicolas Viveros

Used 2+ times

FREE Resource

13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

  1. True or false: To square a number, multiply it by itself. For example, if you have the number 4, squaring it means 4 multiplied by 4, which equals 16.

True

False

Answer explanation

When you square a number, you multiply it by itself. For example, if you have the number 4, squaring it means 4 multiplied by 4, which equals 16. So, 42 = 4 × 4 = 16.

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

  1. True or false: When you square a negative number, you get a negative result because a negative times a negative gives a negative. For example, if you square -3, you get -3 × -3 = -9.

True

False

Answer explanation

When you square a negative number, you get a positive result because a negative times a negative gives a positive. For example, if you square -3, you get -3 × -3 = 9, which is positive. So, (-3)2 = -3 × -3 = 9.

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

  1. True or false: A perfect square is a number that you get when you multiply a whole number by itself. For instance, 25 is a perfect square because it can be obtained by multiplying 5 (a whole number) by itself: 5 × 5 = 25.

True

False

Answer explanation

A perfect square is a number that you get when you multiply a whole number by itself. For instance, 25 is a perfect square because it can be obtained by multiplying 5 (a whole number) by itself: 5 × 5 = 25.

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt


  1. The area of a square can be found by squaring the side length. A square has a side length of 8 ft. What equation represents the area of the square?


  1. A = 82 = 16

  1. A = 8 × 4 = 32

  1. A = 82 = 64

  1. A = 8 × 2 = 16

Answer explanation

The formula for finding the area of a square is given by A = side² = side length × side length. In this case, the side length is 8 ft. So, the correct equation is A = 8² = 8 × 8 = 64.

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

  1. Evaluate 72.

14

49

21

56

Answer explanation

To find 72, you need to multiply 7 by itself: 7 × 7 = 49. So, 72 = 49.

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

  1. Evaluate (-11)2.

-22

112

33

121

Answer explanation

To find (-11)2, you need to multiply -11 by itself: -11 × -11 = 121. So, (-11)2 = 121.

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

  1. Evaluate -12².

-144

144

-24

24

Answer explanation

To solve -12², you first square 12 (12 × 12), which equals 144. Then, you add the negative sign, resulting in -144.

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