Solving Expressions You will have 20 seconds to complete each of the following 10 questions. A chime...

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.