Unit 1 Practice #1

Write the expression using exponents.

f × f × f × k × k × k × k

• f³ + k⁴

• f³ ÷ k⁴

• fk⁷

• f³k⁴

Tags

CCSS.6.EE.A.1

Write the expression using exponents. Use ( ) where needed.

-144 × 144 × 144

• 144³

• (-144)²

• -144³

• (-144)² × 144¹

Tags

CCSS.8.EE.A.1

Evaluate the expression.

(-3)² + (-8³ + 21) ÷ 1 × 5 + 1⁴⁵ - 12⁰

• -2446

• -394

• -2464

• Cannot be solved as written

Tags

CCSS.7.NS.A.3

Evaluate the expression.

c²d⁵ – xy²z⁴; where c = 1, d = 2, x = 4, y = 3, and z = 2

• -172

• -544

• 54

• Cannot be solved as written

Tags

CCSS.6.EE.A.2C

COMPARE using < , > , or =.

7.45 × 10²³ ___ 8.45 × 10²²

• <

• >

• =

• Cannot be determined.

Tags

CCSS.8.EE.A.3

Simplify the following. THEN identify all the COEFFIECIENTS in your answer.

-2(5x + 4) + 12 – 15x – 2x² + 12

The coefficients are:

• 25 and 2

• 25 and -2

• -25 and 2

• -25 and -2

• -25, -2, and 16

Tags

CCSS.6.EE.A.3

True or False? A non-terminating, non-repeating decimal can be a rational number.

• True

• False

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Which number is written correctly in scientific notation?

• 4.53 × 2^-10

• 4.53 × 10^-2

• 45.3 × 10^-2

• 453 × 10²

Tags

CCSS.8.EE.A.3

Solve for j.

j² = 25

• j = 5

• j = 625

• j = 125

• j = 12.5

Tags

CCSS.8.EE.A.2

Magdalena is building a square-shaped pool in her backyard. Due to the size of her backyard, the pool's area can be no more than 180 square feet. If Magdalena wants to to maximize the area of the pool, between what two numbers must the length of each side of the pool be? (Remember your perfect squares!)

• 10 and 11 feet

• 12 and 13 feet

• 13 and 14 feet

• 15 and 16 feet

Tags

CCSS.HSA.REI.A.2