Adding Integers with Counters and Number Lines

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero, but does not include fractions or decimals.

Front

How do you represent negative integers on a number line?

Back

Negative integers are represented to the left of zero on a number line.

Front

What is the result of adding a positive integer to a negative integer?

Back

The result depends on the absolute values of the integers; if the positive integer is larger, the result is positive, and if the negative integer is larger, the result is negative.

Front

What does the term 'absolute value' mean?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction; it is always a non-negative number.

Front

How do you add two integers with different signs?

Back

To add two integers with different signs, subtract the smaller absolute value from the larger absolute value and take the sign of the integer with the larger absolute value.

Front

What is the sum of -2 and 9?

Back

The sum of -2 and 9 is 7.

Front

What does the expression -5 + (-5) equal?

Back

The expression -5 + (-5) equals -10.

Front

How can counters be used to represent integer addition?

Back

Counters can be used to visually represent positive and negative integers, where one color represents positive integers and another color represents negative integers.

Front

What is the result of adding two negative integers?

Back

The result of adding two negative integers is a negative integer.

Front

How do you find the sum of integers using a number line?

Back

To find the sum of integers using a number line, start at the first integer and move to the right for positive integers or to the left for negative integers.