Fix My Mistake
9 - 3 x 2 = 12
9 -3 x 2 = 3
Give the correct order of operations.
Parenthesis, Multiplication/Division, Addition/Subtraction
3 + 6 x 4
27
(14 + 6) x (12 -4) -9
151
Which the expanded form for the following number?
25.863
20 + 5 + 0.8 + 0.06 + 0.003
10÷5 x 2 = 1
10÷5 x 2 = 4
What is the saying we use to remember the correct Order of Operations?
PMDAS
25 ÷ 5 -2
3
(15 - 5) x 10 + 3
103
Power of ten
103
5 x 5 +1 = 30
5 x 5 + 1= 26
Which the correct order to solve this exercise?
4 x (3 + 5) ÷ 2
First, parentheses, then multiplication, and finally the division.
12 - 8 ÷ 2 + 3
11
6 x 8 + ( 7 - 6 )
49
Divide the following number:
48,000 ÷ 600
80
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 solve from ______ ___ _______.
left to right
20 ÷ (8-3) + 16
20
( 10 + 19 -5 ) x 2
48
Estimate quotient
237 ÷ 7
210 ÷ 7 = 30
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 PMDAS as a mathematician?
So that everyone is solving the problem in the same way in a correct order.
7 + 3 x (8 ÷ 4)
13
2 x ( 9 x 9 + 2) - 8
158
Mrs. Ruiz has 5 dollars, 2 quarters, and 3 nickels. Mrs. Benítez has the same amount of money.
How much money does they have in total?
$11.30