Which will result in a positive number?

Multiplying a negative number by a negative number.

Multiplying a positive number by a positive number.

Multiplying a negative number by a positive number.

Multiplying a positive number by a negative number.

What is the rule for subtracting integers?

ADD the OPPOSITE -or- Keep Change Change

SUBTRACT the OPPOSITE -or- Keep Change Flip

What sign will the product of (-10)(-4) have? How do you know?

Positive, because multiplying two factors with the same signs results in a positive product.

Negative, because multiplying two factors with the same signs results in a negative product.

What is the rule for adding integers with different signs?

Find the difference, keep the sign of the larger number

Find the sum, keep the sign of the larger number

If I divide two numbers with different signs what sign should my answer have? How do you know?

Negative, because a dividend and divisor with different signs result in a negative quotient.

Positive, because a dividend and divisor with different signs result in a positive quotient.

What is the first thing you do when dividing fractions?

Keep the first number (dividend). This is the first step in KEEP - CHANGE - FLIP

Keep the first number (dividend). This is the first step in KEEP - CHANGE - CHANGE

Do you have to change anything about the fractions in a multiplication expression?

No. You can multiply straight across the numerators and the denominators.

Yes. You can't multiply straight across the numerators and the denominators.

What has to be the same before you can add or subtract fractions?

The denominators must be the same and can be created with equivalent fractions.

The numerator must be the same and can be created with equivalent fractions.

When you divide fractions, the division sign changes to __________.

Multiplication. This is the second step in KEEP - CHANGE - FLIP

Addition. This is the second step in KEEP - CHANGE - CHANGE

Mixed numbers can always be changed to...

Improper fractions and equivalent fractions

Proper fractions and equivalent fractions

How can you find out where to put the decimal point when multiplying decimals?

Count the total number of decimal places in the factors.

Count the total number in the factors.

Unit Review

Authored by Liezl Galgo

Mathematics

7th Grade

CCSS covered

Used 3+ times

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45 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A _________ is the decimal form of a rational number with digits that repeat.

Absolute Value

Repeating decimal

Bar notation

Terminating decimal

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In _________, a line or bar is placed above the digits that repeat in a repeating decimal.

Absolute Value

Repeating decimal

Bar notation

Terminating decimal

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A _________ is the decimal form of a rational number with a repeating digit of zero.

Absolute Value

Repeating decimal

Bar notation

Terminating decimal

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Any number from the set {…, -3,-2,-1,0,1,2,3,…} is a(n)

Integer

Natural number

Rational number

Irrational number

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Integer

Natural number

Rational number

Irrational number

Tags

CCSS.8.NS.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two numbers that are opposites and have the sum of zero.

Integer

Additive inverse

Multiplicative inverse

Absolute value

Tags

CCSS.7.NS.A.1B

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The sign of the sum of two integers with different signs is the sign of the integer with the greater _______.

Integer

Additive inverse

Multiplicative inverse

Absolute value

Tags

CCSS.7.NS.A.1B

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