Adding and Subtracting Integers with Models

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but not a fraction or decimal.

Front

Which of the following is an integer? 1/8, .39, -7, 8.3

Back

-7

Front

What does a zero pair consist of?

Back

A zero pair consists of one negative and one positive number that cancel each other out.

Tags

CCSS.7.NS.A.1B

Front

What is the rule for adding two negative integers?

Back

When adding two negative integers, the result is negative and you add their absolute values.

Tags

CCSS.7.NS.A.1C

Front

What is the rule for adding a positive integer and a negative integer?

Back

Subtract the absolute values and take the sign of the number with the larger absolute value.

Tags

CCSS.7.NS.A.1B

Front

What is the result of -9 + (-5)?

Back

-14

Tags

CCSS.7.NS.A.1C

Front

What is the first step in subtracting integers?

Back

Change the subtraction sign to addition.

Tags

CCSS.7.NS.A.1C

Front

What do you do with the second number when subtracting integers?

Back

Use the opposite of the second number.

Tags

CCSS.7.NS.A.1C

Front

What is the result of 2 + (-4)?

Back

-2

Tags

CCSS.7.NS.A.1C

Front

What is the result of -3 + 5?

Back

2

Tags

CCSS.7.NS.A.1C