Word Stuff
What is the correct order of operations?
Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
3 + 4 x 5
23
14 - 2 x 7
0
Add these decimals.
4.35 + 5.6
9.95
Why is it important to know PEMDAS as a mathematician?
So everyone can solve every problem the same (correct) way.
5 2 + 1=11
5 2 = 25, not 10. Correct Answer is 26.
7 + (2 x 4) - 1
14
49 ÷ (3+4) + 52
32
Calculate this equation with negative integers.
-9 + (-4) =
-13
Why are there different versions of the order of operations acronym?
BIDMAS BEDMAS PEMDAS
Some people use a different word for parentheses - brackets, or sometimes the letters MD are around the other way
32 - 6 = 0
3 2 = 9, not 6. Correct answer is 3
56 ÷ (4+4) + 32
16
5 + 14 ÷ 2 × 5
40
Solve this equation.
349 x 65 =
22,685
Tell what 5 3 really means.
It means 5 x 5 x 5
4 + 5 + 7 - 3 x 2 = 26
You need to follow PEMDAS and do x first. Correct answer is 10.
20 – (5+3) x 2 + 4
8
(4-1)2 + (5+ 1)2
45
Solve this equation.
434 divided by 7 =
62
The problem was 20 - 5 x 2. My answer was 30. What did I do wrong?
I went from left to right without using the correct order of operations.
10 3 = 30
10 3 = 10 x 10 x10, which is 1000, not 30.
(5 x 4) – 6 ÷ 2 + 9
26
4 + (3 x 6) + 42 =
38
How do you spell Mr. T's first and last names correctly?
2000 bonus points if you get his middle name correct.
Geoffrey Trevaskis