Squares and Cubes Review

• 8
• 9
• 10
• 11

What is the closest approximation for ∛70

• 3.9

• 4.1

• 4.9

• 5.1

∛67 is between 4 and 5, but closer to:

• 4

• 5

• Exactly in the middle of 4 and 5

What would be the side length if you used 49 tiles to create a perfect square?

• 7 tiles

• 14 tiles

• 4 tiles wide and 9 tiles long

• 3.5 tiles

3³ = ?

• 27

• 9

• 6

• ¹⁵

Answer explanation

$3^3$
$=3\cdot3\cdot3$
$=9\cdot3$
$=27$

• 7 x 2

• 7x 7 x 7 x 7 x 7

• 526

• 35

Answer explanation

Expanded form means written without using any exponents.
 $7^5$  means the base 7 will be multiplied by itself 5 times, as the exponent indicates.
This results in the expanded form:
 $7\cdot7\cdot7\cdot7\cdot7$  

Which expressions are equivalent to 64?

• (8)(8)

• 32²

• (-8)(-8)

• 21³

Answer explanation

Expressions equivalent to 64:

$8\cdot8=64$

$8^2=8\cdot8=64$

$-8\cdot-8=64$

2^{3 = ?}

• 5

• 8

• 6

• 9

Answer explanation

$2^3$

$=2\cdot2\cdot2$

$=4\cdot2$
$=8$

3^{2 = ?}

• 6

• 5

• 9

• 8

Answer explanation

$3^2$
$=3\cdot3$
$=9$

4^{2 = ?}

• 8

• 6

• 16

• 32

Answer explanation

$4^2$
$=4\cdot4$
$=16$