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Solving ExpressionsYou will have 20 seconds to complete each of the following 10 questions.
A chime will sound when
the next problem appears.
Good luck!
Question #1
8 + 2 3
Question #2
15 – 9 2 3
Question #3
5 + 6 3 – 7
Question #4
3 (4 + 2)
Question #5
6 7 – 5 + 4 3
Question #6
18 – 4 2 5
Question #7
8 (5 – 3) + 2
Question #8
5 – 3 8 6
Question #9
5 (3 – 2) + 6 3
Question #10
5 + 2³ 3
Good job!
How did you do? Did you remember to use the order of
operations when solving the problems? Let’s check.
Click to view rules.
What is the correct order of operations?
1st – Parenthesis 2nd – Exponents 3rd – Multiply & Divide from left to right 4th – Add & Subtract from left to right
Click to continue
Remember the Phrase
Please Excuse My Dear Aunt Sallya x u i d ur p l v d be o t i tn n i d rt e p e ah n l ce t y ts sis Click to
continue
Or the word
P E M D A Sa x u i d ur p l v d be o t i tn n i d rt e p e ah n l ce t y ts sis Click to continue
Solutions
The following slides show the correct steps to solving the previous 10 problems.
Click to view each step.
#1 Solution
8 + 2 3
8 + 6
14
#2 Solution
15 – 9 2 3
15 – 18 3
15 – 6
9
#3 Solution
5 + 6 3 – 7
5 + 18 – 7
23 – 7
16
#4 Solution
3 (4 + 2)
3 6
18
#5 Solution
6 7 – 5 + 4 3
42 – 5 + 4 3
42 – 5 + 12
37 + 12
49
#6 Solution
18 – 4 2 5
18 – 2 5
18 – 10
8
#7 Solution
8 (5 – 3) + 2
8 2 + 2
4 + 2
6
#8 Solution
5 – 3 8 6
5 – 24 6
5 – 4
1
#9 Solution
5 (3 – 2) + 6 3
5 1 + 6 3
5 + 6 3
5 + 2
7
#10 Solution
5 + 2³ 3
5 + 8 3
5 + 24
29
Great job!
Always remember to use the rules.
We should all get the same answers.
Keep the clues in mind while working.