Word Stuff
Fix my Mistake
Solve
Solve
Other Stuff
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
14 - 2 x 7
0
100
What is the most important ingredient to success in Algebra?
The ability to keep trying even if it is hard until you get it.
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
49 ÷ (3+4) + 52
32
200
The difference between a numerical expression and an algebraic expression is
numerical expressions contain only numbers, algebraic expressions include one or more variables.
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
What is a variable?
A variable is a letter or symbol used to represent a number.
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
True or False: An expression is made up of one or more numbers, one or more variable and includes an equal sign.
False. An expression does not include an equal sign.
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
Define how to evaluate an algebraic expression.
To evaluate an algebraic expression means to substitute a given value for the variable, then simplify by following the Order of Operations.
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