Fix My Mistake
9 - 3 x 2 = 12
9 -3 x 2 = 3
Give the correct order of operations.
Multiplication/Division from left to right whichever comes first, then Addition/Subtraction from left to right whichever comes first.
3 + 6 x 4
27
14 + 6 x 12 - 4 - 9
73
the sum of 9 and 3 divided 3
9 + 3 ÷ 3
10÷5 x 2 = 1
10÷5 x 2 = 4
What is the saying we use to remember the correct Order of Operations?
My Dog Ate Spaghetti.
25 ÷ 5 -2
3
75 - 5 x 10 + 3
28
How many sides does an octagon have?
5 x 5 +1 = 30
5 x 5 + 1= 26
What is this called?
4 x 3 + 5
numerical expression
12 - 8 ÷ 2 + 3
11
6 x 8 + 7 - 6
50
How many total hours in 2 days?
48
4 + 5 + 7 - 3 x 2 = 26
4 + 5 + 7 - 3 x 2 = 10
If I have addition and subtraction in my expression, I should move from ______ ___ _______.
left to right
24 ÷ 8 - 3 + 16
16
10 + 19 - 5 x 2
19
365
The problem was 20 - 5 x 2 + 3. My answer was 33. What did I do wrong?
I did not multiply first. The answer should be 13.
Why is it important to know the order of operations as a mathematician?
So that everyone is solving the problem in the same way
8 + 3 x 8 ÷ 4
16
2 + 9 x 9 + 2 - 8
77
How many minutes in 3 hours?
180 minutes