My Aunt Sally
Give the correct order of operations.
Parenthesis, Exponents, Division OR Multiplication, Addition OR Subtraction (left to right)
9 - 3 x 2=12
Correct answer is 3. Do x then -, not - then x.
3 + 4 x 5
23
27
128
When is Ms. Tinsley's Birthday?
Dec 29th
Why is it important to know PEMDAS as a mathematician?
So everyone can solve every problem the same (correct) way.
2 x (5 + 1) =11
Correct answer is 12.
5 + 1 first, then multiply by 2. Not 2 x 5 first - (parenthesis come first).
53
125
What is the surface area of a cube with edge lengths of 7 meters?
294 square meters
Which part of PEMDAS does Unit 4 END focus on the MOST?
Exponents.
3 + 12 x 2 - 6 = 24
Correct answer is 21.
12 x 2 first (multiplication comes BEFORE addition)
56 ÷ (4+4) + 9
16
23 + 33
8 + 27 = 35
What is the volume of a cube with edge lengths of 7 meters?
343 cubic meters
Tell what 5 3 really means.
It means 5 x 5 x 5
4 + 5 + 7 - 3 x 2 = 26
Correct answer is 10.
You need to follow PEMDAS and do x first.
20 – (5+3) x 2 + 4
8
36 / 32
4
48
True or False?
I do Addition first, then Subtraction when solving an equation because that is the order they appear in PEDMAS
False.
I do Addition OR Subtraction in the order they appear, working left to right.
10 3 = 30
10 3 = 10 x 10 x10, which is 1000, not 30.
(5 x 4) – 6 ÷ 2 + 9
26
If 64 equals 1296, what does 65 equal?
7,776
There is a lilipad in a small pond that doubles each day. If the lilipad covers the whole pond on the 20th day, when will it cover half the pond?
19th day since it doubles each day that means on the day before it will be half as much.