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Lesson Topics Discussion Quiz: Class Homework

Example1

Title: Adding signed numbers

Grade 6+ Lesson s1-l2

Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding.

Examples

Topics → Definition Example1 Example2

Let’s add (+9) and (-4).

Step 1

Since one number is positive and the other is negative, we’ll use the different sign addition rule.

Explanation:

\$|+9|\$ = 9 and \$|-4|\$ = 4
9 - 4 = 5

Step 2

The sign of the result will be the sign of the number with the larger absolute value, which in this case is (+9) + (- 4) = 5.

Explanation:

Therefore, (+9) + (-4) = 5.