Adding Integers and Understanding Concepts

This video tutorial explains how to add integers with the same sign using manipulatives and a number line. It demonstrates the process with examples, showing that when adding two positive integers, the result is positive, and when adding two negative integers, the result is negative. The video concludes with a rule: add the integers and keep their sign. Practice questions are provided for reinforcement.

What is an integer?

• Any number on the number line, including negatives and zero

• A positive whole number only

• A fraction or decimal

• A number that is not on the number line

What does a red counter represent in this lesson?

• A negative number

• Zero

• A fraction

• A positive number

How do you model a positive three using chips?

• One red chip and two yellow chips

• Two red chips and one yellow chip

• Three yellow chips

• Three red chips

If you add two negative numbers using chips, what color are the chips?

• Yellow

• Red

• Green

• Blue

What is the result of adding a positive one and a positive four using chips?

• Negative four

• Negative five

• Positive five

• Zero

When adding a negative one and a negative four, what is the result?

• Zero

• Negative five

• Positive four

• Positive five

What is the sum of two positive integers, two and five, using chips?

• Positive five

• Positive seven

• Negative seven

• Zero

How do you represent moving further away from zero on a number line?

• Move up

• Stay at the same position

• Move to the left

• Move to the right

What rule can be followed when adding two integers with the same sign?

• Divide the integers and keep their sign

• Subtract the integers and change the sign

• Multiply the integers and change the sign

• Add the integers and keep their sign

What is the result of adding -10 and -5?

• 15

• -15

• -5

• 5