Word Stuff
Give the correct order of operations.
Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction
9 - 3 x 2 = 12
Correct answer is 3. Multiply before you subtract.
3.2 + 4.11 x 5
23.75
14.36 - 2 x 7
0.36
What does the G in GEMDAS stand for?
Grouping which means parenthesis
Which operation do you perform first, addition or subtraction?
Whichever comes first moving left to right
20 – 4 + 6 x 8 ÷ 4 = 44
28 is the correct answer, you have to follow GEMDAS LEFT TO RIGHT.
First: 6 x 8 = 48
then 48 ÷ 4 = 12
then 20 - 4 = 16
THEN: 16 + 12 = 28
7.8 + (2.63 x 4) - 1.2
17.12
4.9 ÷ (3+4) + 5
5.7
What does the M and D stand for in GEMDAS?
Multiplication and Division
Which operation do you solve first, multiplication or division?
Whichever comes first moving left to right
2[ 13 - ( 1+6)] = 19
12 is the correct answer
First: 1 + 6 = 7
Second: 13 - 7 = 6
Third: 2 x 6 = 12
5.6 ÷ (4+7) - 3
0.7
5 + 14.28 ÷ 2 × 50
362
What does the A stand for in GEMDAS?
Addition
Julia wrote the expression below.
(3 x 4) + (15 ÷ 3 -1)
She thinks that the second operation to be performed in simplifying the expression is addition. Is she correct?
No, it is 15 ÷ 3
4 + 5 + 7 - 3 x 2 = 26
You need to follow GEMDAS and multiply first. Correct answer is 10.
20 – [(5.56+3) x 2 + 7.4]
_______________
2
[(4 - 0.1)(5 + 1)] - 9.87
13.53
How do we know which comes first, Addition or Subtraction?
Left to Right
The problem was 20 - 5 x 2 + 3. My answer was 33. Am I wrong?
Yes, the correct answer is 13.
3.1·(6+4)(5.5 – 3.2) = 51.98
The correct answer is 71.3
First: (6 + 4) = 10
Second: (5.5 - 3.2) = 2.3
Third: Multiply 3.1(10) = 31
Fourth: Multiply 31(2.3) = 71.3
[(5 x 4) – 6] ÷ 2 + 9
_______________
11
2
[(13.4 + 7.2) x (25 - 13)] + 1
248.2
How do we know which comes first, Multiplication or Division?
Left to Right