Adding & Subtracting Integers with counters

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.

Front

What does adding a positive integer do to a number?

Back

It increases the value of the number.

Front

What does adding a negative integer do to a number?

Back

It decreases the value of the number.

Front

What is subtraction in terms of addition?

Back

Subtraction can be thought of as adding a negative number.

Front

What is a zero pair?

Back

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

Front

How do you represent -3 using counters?

Back

Use 3 red counters to represent -3.

Front

How do you represent +4 using counters?

Back

Use 4 yellow counters to represent +4.

Front

What is the result of adding +3 and -3?

Back

The result is 0, as they cancel each other out.

Front

What is the result of -2 + -4?

Back

The result is -6.

Front

What is the result of 2 + -4?

Back

The result is -2.