14 - 2 x 7
0
Spell this word out loud
Nice!
7 + (2 x 4) - 1
14
Why is it important to know PEMDAS/Order of Operations as a mathematician?
So everyone can get the same answer to the same problems. (And so mathematicians don't waste their time arguing over simple math)
Will two negative numbers multiplied together give a negative answer?
Example: -2 · -2 = -4
No, the answer will be positive!
-2 · -2 = 4
5 + 14 ÷ 2 × 5
40
Spell THIS word out loud!
Nice one!
(5 · 4) – 6 ÷ 2 + 9
26
103 = 30. What is the correct answer?
10 3 = 10 x 10 x10, which is 1000, not 30!
(-12) + (-12) =
-24!
(7-8) · 22
-4!
How about this word out loud?
Tricky one..!
4 + 5 + 7 - 3 · 2 =?
Correct answer is 10!
Tell what 53 really means
It means 5 x 5 x 5
(-21) / (-7) =
3!
49 ÷ (3+4) + 25
32
Harder now...how about this word?
Very good!
20 – (5+3) · 2 + 4
8
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.
(-224) - (-25) =
-199!
12 + 32 · (5-2) - 16 ÷ 4 · 2
31! Nice!
Master of spelling! Try this word.
Amazing!! :0
9 - 3 · ⅓ + 1
9! Tricky one!
Give the correct order of operations:
Subtraction, Exponents, Division, Parentheses, Addition, Multiplication
Parentheses, Exponents, Multiplication OR/AND Division left to right, Addition OR/AND Subtration left to right.
(-125) x (+5) =
-625! Nice!