Adding Positive and Negative Integers Explained

In this video, Mr. J explains how to add integers using different strategies. He covers four examples, demonstrating how to handle both different and same signs. For different signs, he uses absolute values to find the difference and applies the sign of the larger absolute value. For same signs, he adds the absolute values and retains the sign. Mr. J also discusses using mental math and number sense to solve these problems. The video concludes with a summary of the strategies and a mention of a related video on using a number line.

What is the first step in adding integers with different signs?

• Add the integers directly

• Find the absolute values

• Multiply the integers

• Divide the integers

What is the absolute value of -5?

• 0

• 5

• -5

• 10

When adding -5 and 7, what is the final answer?

• 12

• -2

• -12

• 2

What is the absolute value of 20?

• -20

• 10

• 20

• 0

When adding 20 and -12, what is the final answer?

• 12

• 8

• -8

• 32

What is the absolute value of -13?

• 13

• -13

• 0

• 26

When adding -13 and -4, what is the final answer?

• -17

• 17

• -9

• 9

What is the absolute value of -25?

• 0

• 50

• -25

• 25

When adding -25 and -8, what is the final answer?

• -33

• 33

• -17

• 17

Which strategy can help visualize adding integers?

• Using a ruler

• Using a protractor

• Using a calculator

• Using a number line