Word Stuff
Fix my Mistake
Solve
Pattern Rules
One-Step Equations
100
Give the correct order of operations.
Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction
100
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
100
3 + 4 x 5
23
100

2, 4, 6, 8...

Start at 2 and add 2 each time.
100

x + 3 = 5

x = 2

200
Why is it important to know PEMDAS as a mathematician?
So everyone can solve every problem the same (correct) way.
200
5 2 + 1=11
5 2 = 25, not 10. Correct Answer is 26.
200
7 + (2 x 4) - 1
14
200

3, 6, 12, 24, 48

Start at 3 and double each time.

200

3x = 15

x = 5

300

What is the acronym we use to remember the correct Order of Operations?

BEDMAS

300
32 - 6 = 0
3 2 = 9, not 6. Correct answer is 3
300
56 ÷ (4+4) + 32
16
300

1, 1, 2, 3, 5, 8

Start with 1, 1 and add the two previous terms each time. 
300

40 - x = 28

x = 12

400

Tell what 5 3 really means.

It means 5 x 5 x 5

400
4 + 5 + 7 - 3 x 2 = 26
You need to follow PEMDAS and do x first. Correct answer is 10.
400
20 – (5+3) x 2 + 4
8
400

500, 100, 20, 4

Start at 500 and divide by 5 each time. 

400

x/5 = 20

100

500
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?
I went from left to right without using the correct order of operations.
500
10 3 = 30
10 3 = 10 x 10 x10, which is 1000, not 30.
500
(5 x 4) – 6 ÷ 2 + 9
26
500

4, 7, 13, 25, 49

Start at 4 and multiply the previous number by 2 then subtract 1. 

500

-3x - 10 = 50

-20

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