solve for x
PEMDAS
I see, so I do
Inverse PEMDAS
BONUS
100

3+x=10

x=7

100
The order of operations to solve 3 (5) + 9
multiplication, then addition
100

I see addition, so I do ___________. Example: x+1=3

subtraction

100
The inverse order of operations to solve 3 (2) + 9 = 15
subtraction, then division
100

1. Riddle: What has to be broken before you can use it?

Answer: An egg

200

5x=100

20

200
The order of operations to solve 21 / 3 - 5
division, then subtraction
200
I see multiplication, so I do ____________.
division
200
The inverse order of operations to solve 26 / 2 - 8 = 5
addition, then multiplication
200

3. Riddle: What month of the year has 28 days?

Answer: All of them

300

2x+4=20

x=8

300
The order of operations to solve 25 - 6 (3)
multiplication, then subtraction
300
I see multiplication and subtraction, so I do ___________ and __________.
division and addition
300
The inverse order of operations to solve 4 (5) - 9 = 11
addition, then division
300

What has hands but cannot clap?

Answer: A clock

400

5+2(x+1)=9

x=1

400
The order of operations to solve 3 + 4 / 2
division, then addition
400
I see division, and addition, so I do __________ and _________.
multiplication and subtraction
400
The inverse order of operations to solve 20 / 2 + 6 = 16
subtraction, then multiplication
400

What has to be broken before you can use it?

Answer: An egg

500

2/3 + 1/3x=1 and 2/3

x=3

500
The order of operations to solve 15 + 3 (6) - 21
multiplication, then addition, then subtraction
500
I see addition, multiplication, and subtraction, so I do _________, __________, and ____________.
subtraction, division, and addition
500
The inverse order of operations to solve 15 = 7 + 3 (4) - 6
addition, then subtraction, then division
500

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Answer: He was bald.

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