Adding Positive and Negative Numbers

Which situations describe an additive inverse? Check all that apply.

• An elevator goes up 11 floors and then goes down 11 floors.

• A diver goes down 100 feet and comes back up 80 feet.

• You earn $25.75 and spend $25.75.

• You have 4 pizzas and you eat 3 pizzas.

Tags

CCSS.7.NS.A.1B

-51.5+?=0

• -51.5

• 51.5

• 100

• -100

Tags

CCSS.7.NS.A.1B

When you start at a positive number and you add a negative number to it, which direction do you travel on the number line?

• You travel right-it gets more positive

• You travel left-it gets more negative

• You stay still so no one can see you!

Tags

CCSS.7.NS.A.1B

When you start at a negative number and you add a positive number to it, which direction do you travel on the number line?

• You travel right--it gets more positive

• You travel left--it gets more negative

• You stay still--so no one can see you! :)

Tags

CCSS.7.NS.A.1B

What is the answer sign when you start with a positive number and you add a smaller negative number to it? For example, the problem 50+(-14) would have what type of answer?

• positive

• negative

• zero

Tags

CCSS.7.NS.A.1C

What is the answer sign when you start with a positive number and you add a bigger negative number to it? For example, the problem 10+(-23) would have what type of answer?

• positive

• negative

• zero

Tags

CCSS.7.NS.A.1C

What is Mrs. Ealy's favorite color?

• purple

• pink

• green

• red

What is the answer sign when you start with a negative number and you add a smaller positive number to it? For example, the problem -75+20 would have what type of answer?

• positive

• negative

• zero

Tags

CCSS.7.NS.A.1C

What is the answer sign when you start with a negative number and you add a bigger positive number to it? For example, the problem -5+28 would have what type of answer?

• positive

• negative

• zero

Tags

CCSS.7.NS.A.1C

How well are you understanding the lessons on positive and negative numbers?

• so got this!

• pretty good, need more practice!

• meh

• HELP!!

Tags

CCSS.7.NS.A.1B