Math 8: Ch. 1-4, 6 Review

Front

Approximate -√23 to the nearest tenth.

Back

≈ -4.8

Tags

CCSS.8.NS.A.2

Front

Calculate the total amount Zach needs to repay after borrowing $2,000 for 6 months at a 12% annual simple interest rate.

Back

$2,120

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CCSS.7.RP.A.3

Front

Simplify -4n² ÷ (10)² for n = -5.

Back

-20

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CCSS.6.EE.A.2C

Front

If Kelsey earns a 12% commission and makes $2704.80, how much were her total sales?

Back

$22,540

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CCSS.6.RP.A.3C

Front

Write in scientific notation: 1×10⁻⁵ ÷ 2×10⁻².

Back

5 ×10⁻⁴

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CCSS.8.EE.A.4

Front

Define simple interest and provide the formula used to calculate it.

Back

Simple interest is calculated using the formula I = PRT, where I is interest, P is principal, R is rate, and T is time.

Tags

CCSS.7.RP.A.3

Front

What is scientific notation and why is it used?

Back

Scientific notation is a way to express very large or very small numbers in the form a × 10^n, where 1 ≤ a < 10 and n is an integer.

Tags

CCSS.8.EE.A.3

Front

Explain how to simplify a fraction with exponents.

Back

To simplify a fraction with exponents, subtract the exponent in the denominator from the exponent in the numerator.

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CCSS.8.EE.A.1

Front

What is the process to approximate square roots?

Back

To approximate square roots, find two perfect squares between which the number lies and estimate the value.

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CCSS.8.NS.A.2

Front

Define commission in a sales context.

Back

Commission is a fee paid to an employee based on the sales they generate, usually expressed as a percentage.

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CCSS.RI.7.3

CCSS.RI.7.5

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.5