Adding Negative and Positive Integers

Mr. Leatherwood introduces modeling integer addition using counters, focusing on the concept of zero pairs. He demonstrates examples of adding negative and positive integers, emphasizing the importance of zero pairs in simplifying calculations. The video concludes with a preview of future lessons on number lines and subtraction.

What is a zero pair in the context of integer addition?

• Two positive chips

• A zero chip and a positive chip

• A negative chip and a positive chip

• Two negative chips

Why are zero pairs important in integer addition?

• They decrease the total value

• They have no effect

• They increase the total value

• They cancel each other out

What happens when you add a negative and a positive chip together?

• They form a zero pair

• They form a negative pair

• They form a neutral pair

• They form a positive pair

What is the result of adding -5 and -2 using counters?

• 7

• 3

• -7

• -3

How many negative chips are there when you add -5 and -2?

• 8

• 7

• 6

• 5

What is the first step in modeling addition of integers using counters?

• Add all chips together

• Start with the number on the right

• Start with the number on the left

• Remove all zero pairs

What is the result of adding two negative integers?

• Zero

• A larger negative integer

• A positive integer

• A smaller negative integer

What is the leftover amount when adding -5 and -2?

• 8 negative chips

• 5 negative chips

• 7 negative chips

• 6 negative chips

What is the result of adding -5 and 2 using counters?

• 7

• 3

• -3

• -7

How do zero pairs affect the addition of -5 and 2?

• They have no effect

• They increase the total

• They decrease the total

• They cancel out some chips