Question

PEDMAS?

Example 1:

3+8(4-2)-7

Parentheses First = 3+8(2)-7
Exponents-none
Multiply/Divide 3+16-7
Add/Subtract 19-7 = 12

Example 2:

32-(9-5)+7x3-8÷2
Parentheses 32-(4)+7x3-8÷2
Exponents 6-4+7x3-8÷2
Multiply/Divide 6-4+21-4
Add/Subtract 2+17=19

Review

Directions: Compute the answers using PEMDAS.

1) 7 x 5 + 3=

2) 8 - (6 + 2)=

3) 10 - 6 + 5=

4) (21 3) x 2=

5) (12 6) + 6=

6) 3 + 10 5=

7) 8 + 4 - 2=

8) 7 + 5 - 5=

9) 16 8 - 1=

10) (20 - 17) - 3=

11) 8 + 2 - 7=

12) 18 (4 + 2)=

13) 8 - 6 + 7=

14) 5 - (18 6)=

15) 2 + 13 - 4=

16) (7 - 4) + 3=

17) 9 - 7 + 4=

18) 2 x 6 3=

19) 15 5 + 4=

20) 8 + 6 - 4=

Answer 1

PEMDAS stands for Parentheses, Exponents, Multiplication/Division, and Addition/Subtraction. It is a mnemonic device used to remember the order of operations when solving mathematical equations.

Here are the answers to the review questions using PEMDAS:

1) 7 x 5 + 3= 38
2) 8 - (6 + 2)= 0
3) 10 - 6 + 5= 9
4) (21 / 3) x 2= 14
5) (12 / 6) + 6= 8
6) 3 + 10 x 5= 53
7) 8 + 4 - 2= 10
8) 7 + 5 - 5= 7
9) 16 / 8 - 1= 1
10) (20 - 17) - 3= 0
11) 8 + 2 - 7= 3
12) 18 x (4 + 2)= 108
13) 8 - 6 + 7= 9
14) 5 - (18 / 6)= 2
15) 2 + 13 - 4= 11
16) (7 - 4) + 3= 6
17) 9 - 7 + 4= 6
18) 2 x 6 / 3= 4
19) 15 / 5 + 4= 7
20) 8 + 6 - 4= 10

Answer 2

1. 38

2. 0

3. -1

4. 14

5. 8

6. 5

7. 10

8. 7

9. 1

10. 0

11. 3

12. 2

13. 5

14. 3

15. 11

16. 6

17. 2

18. 4

19. 7

20. 10

Explanation: