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Unit 3 Review: Multiply and Divide Rational Numbers

Authored by Kelsey Barrett

Mathematics

7th Grade

CCSS covered

Used 13+ times

Unit 3 Review: Multiply and Divide Rational Numbers
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11 questions

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1.

MATCH QUESTION

10 mins • 5 pts

Match each word with its definition.

Round

A mathematical statement that uses an equal sign (=) to show that two expressions have the same value

Expression

To approximate the value of a number by finding the nearest ten, hundred, or other place value

Withdrawal

The act of taking something away

Equation

To put something into a place for safe keeping. A bank deposit is money put into a bank account

Deposit

A group of numbers, variables, and/or operation symbols that represent a mathematical relationship.

2.

MATCH QUESTION

10 mins • 5 pts

Match each word with its definition.

Divisor

The number that is divided by another number

Fraction

The number by which another number is divided

Dividend

The result of multiplication

Product

The result of division

Quotient

A number that names equal parts of a whole. Names a point on the number line and can also represent the division of two numbers

3.

MATCH QUESTION

10 mins • 4 pts

Match each word with its definition.

Terminating Decimals

Decimals that repeat the same digit or sequence of digits forever. It can be written with a bar over the repeating digits.

Repeating Decimals

Decimals that end, or end in repeated zeros

Rational Number

Numbers that are the same distance from 0 on the number line but in opposite directions. These numbers have the same numeral, but opposite signs. Also called the additive inverse of that number.

Opposite Numbers

A number that can be expressed as the fraction a/b where a and b are integers and b does not equal 0.

4.

MATCH QUESTION

10 mins • 3 pts

Match each word with its definition.

Reciprocal

For any nonzero number a, this value would be 1/a. For any fraction a/b would be b/a. Also called the multiplicative inverse of that number.

Mean

The sum of a set of values divided by the number of values. This is often called the average

Distributive Property

Multiplying each term in a sum or difference by a common factor does not change the value of the expression. For any numbers a, b, and c. a(b + c) = ab + ac

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is (-5/6) / (-1/3)?

- 5/18

- 5/2

5/2

5/18

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The grocery store sells cheddar cheese at the deli counter. The weight of the cheddar cheese changes by -8 lb. in 5 days. What rational number represents the average change in pounds of the cheddar cheese each day?

-1.6

-0.625

0.625

1.6

7.

MULTIPLE SELECT QUESTION

5 mins • 2 pts

Which expressions have a value less than 1? Choose ALL the correct answers.

-7 * 1/2 - 4

-7 *(1/2) *(- 4)

-7 * (1/2 - 4)

-7 + 1/2 * (- 4)

-7 / (-1/2) + 4

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