Word Stuff
Give the correct order of operations.
Brackets or Parenthesis
Exponents
Division or Multiplication
Addition or subtraction
3 + 4 x 5
23
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
14 - 2 x 7
0
Why is it important to know PEMDAS as a mathematician?
So everyone can solve every problem the same (correct) way.
7 + (2 x 4) - 1
14
52 + 1=11
52 = 25, not 10. Correct Answer is 26.
49 ÷ (3+4) + 52
32
Tell what 53 really means.
It means 5 x 5 x 5
56 ÷ (4+4) + 32
16
32 - 6 = 0
32 = 9, not 6. Correct answer is 3
5 + 14 ÷ 2 × 5
40
What is the base, exponent, power and value of 63
B=6, E=3, P=63, V=216
20 – (5+3) x 2 + 4
8
4 + 5 + 7 - 3 x 2 = 26
You need to follow PEMDAS and do x first. Correct answer is 10.
(4-1)2 + (5+ 1)2
45
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.
(5 x 4) – 6 ÷ 2 + 9
26
103 = 30
10 3 = 10 x 10 x10, which is 1000, not 30.
12 + 22 x 32 - 42
21