Enter Title

Addition

100

w + 5 = 8

w = 3 

200

8 + y = 20

y = 12

300

(4 + 3) + w = 17

w = 10

400

y + 4 = 1

y = -3

500

y + 8 = 4

y = -4

Subtraction

100

x - 8 = 10 

x = 18

200

7 = y - 7

y = 14

300

-6 = x - 6

x = 0

400

x - 9 = -5

4

500

2.45 = w - 2.55

x = 5

Multiplication

100

2x = 10

x = 5

200

75 = 25m

m = 3

300

45 = 3h

h = 15

400

2x = 7

x = 3.5

500

4w = 10

w = 2.5

Division

100

x/2 = 4

x = 8

200

5 = x/3

x = 15

300

x/3 = 16

x= 48

400

x/2 = 0.5

x = 1

500

x/3 = 0.25

x = 0.75

Challenge

100

What's the inverse of addition?

Subtraction 

200

What are zero pairs?

Two numbers that cancel out to zero 

300

What is a variable?

A letter that represents an unknown number

400

What are exponents? 

A number that is being repeatedly multiplied 

500

Explain what is happening when subtracting a negative: example: 2 -(-3)

adding the opposite 

turning to move left on a number line and then walking backward

add zero pairs and then take away the negatives and you're left with positives