Parentheses, Braces, then Brackets
Exponents
Multiplication OR Division (in order written from left to right)
Addition OR Subtraction (in order written from left to right)
100
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
100
3 + 4 x 5
23
100
14 - 2 x 7
0
100
Translate the following words into an algebraic expression:
Find half the product of ten and five
10 x 5 / 2
200
Why is it important to know PEMDAS as a mathematician?
So everyone can solve every problem the same (correct) way and get the same answer.
200
5 2 + 1=11
5 2 = 25, not 10. Correct Answer is 26.
200
7 + (2 x 4) - 1
14
200
49 ÷ (3+4) + 52
32
200
What is a variable in math?
a letter or symbol that represents an unknown number
300
What is the saying we use to remember the correct Order of Operations?
Please Excuse My Dear Aunt Sally.
300
32 - 6 = 0
3 2 = 9, not 6. Correct answer is 3
300
56 ÷ (4+4) + 32
16
300
5 + 14 ÷ 2 × 5
40
300
Evaluate 16 (18- y) if y=1
272
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
(4-1)2 + (5+ 1)2
45
400
What is an algebraic expression called if it has an equal sign?
an algebraic EQUATION
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
12 + 22 x 32 - 42
21
500
Add two and four and multiply the sum by three. Then add five to that product and finally double the result.