Adding Integers with Different Signs

The video tutorial covers adding integers with different signs, using number lines and counters to model the process. It explains the concept of additive inverses and zero pairs, and demonstrates algebraic methods for addition. The lesson concludes with a homework assignment to reinforce the concepts learned.

What are additive inverses?

• Numbers that add up to one

• Numbers that add up to zero

• Numbers that are both positive

• Numbers that are the same

When adding a negative number on the number line, which direction do you move?

• To the right

• To the left

• Downwards

• Upwards

If you start at -7 on the number line and add 5, where do you end up?

• 12

• -12

• 2

• -2

What color is used to represent positive counters?

• Yellow

• Green

• Blue

• Red

How many zero pairs are created when you have 3 positive and 2 negative counters?

• 1

• 2

• 4

• 3

What is the result of 3 plus a negative 2 using counters?

• 1

• 2

• 0

• -1

When adding integers with the same sign, what do you do with their absolute values?

• Multiply them

• Divide them

• Add them

• Subtract them

What is the absolute value of -7?

• 14

• 7

• 0

• -7

If you have more negative numbers than positive numbers, what will be the sign of the result?

• Positive

• Negative

• Undefined

• Zero

What is the sum of a number and its opposite?

• The number itself

• Zero

• Negative one

• One