Addition and Subtraction of Exponents online exercise for | Live ... - Free Printable

Let's solve each expression step by step, following the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

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Left Column:

1. $ 2^3 - 4 = $

$ 2^3 = 8 $
$ 8 - 4 = 4 $

✔ Answer: 4

2. $ 1 + 2^1 = $

$ 2^1 = 2 $
$ 1 + 2 = 3 $

✔ Answer: 3

3. $ 4 - 2^2 = $

$ 2^2 = 4 $
$ 4 - 4 = 0 $

✔ Answer: 0

4. $ 8 + 4^2 = $

$ 4^2 = 16 $
$ 8 + 16 = 24 $

✔ Answer: 24

5. $ 1^2 - 6 = $

$ 1^2 = 1 $
$ 1 - 6 = -5 $

✔ Answer: -5

6. $ 7 + 4^3 = $

$ 4^3 = 64 $
$ 7 + 64 = 71 $

✔ Answer: 71

7. $ 8^0 + 2 = $

$ 8^0 = 1 $ (Any non-zero number to the power 0 is 1)
$ 1 + 2 = 3 $

✔ Answer: 3

8. $ 2 - 6^1 = $

$ 6^1 = 6 $
$ 2 - 6 = -4 $

✔ Answer: -4

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Right Column:

9. $ 1 - 8^1 = $

$ 8^1 = 8 $
$ 1 - 8 = -7 $

✔ Answer: -7

10. $ 4^0 + 2 = $

$ 4^0 = 1 $
$ 1 + 2 = 3 $

✔ Answer: 3

11. $ 1^0 - 3 = $

$ 1^0 = 1 $
$ 1 - 3 = -2 $

✔ Answer: -2

12. $ 3^3 + 6 = $

$ 3^3 = 27 $
$ 27 + 6 = 33 $

✔ Answer: 33

13. $ 8^3 - 9 = $

$ 8^3 = 512 $
$ 512 - 9 = 503 $

✔ Answer: 503

14. $ 8 + 2^2 = $

$ 2^2 = 4 $
$ 8 + 4 = 12 $

✔ Answer: 12

15. $ 2 - 9^2 = $

$ 9^2 = 81 $
$ 2 - 81 = -79 $

✔ Answer: -79

16. $ 5^3 + 1 = $

$ 5^3 = 125 $
$ 125 + 1 = 126 $

✔ Answer: 126

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✔ Final Answers:

Left Column:
1. $ 2^3 - 4 = \boxed{4} $
2. $ 1 + 2^1 = \boxed{3} $
3. $ 4 - 2^2 = \boxed{0} $
4. $ 8 + 4^2 = \boxed{24} $
5. $ 1^2 - 6 = \boxed{-5} $
6. $ 7 + 4^3 = \boxed{71} $
7. $ 8^0 + 2 = \boxed{3} $
8. $ 2 - 6^1 = \boxed{-4} $

Right Column:
9. $ 1 - 8^1 = \boxed{-7} $
10. $ 4^0 + 2 = \boxed{3} $
11. $ 1^0 - 3 = \boxed{-2} $
12. $ 3^3 + 6 = \boxed{33} $
13. $ 8^3 - 9 = \boxed{503} $
14. $ 8 + 2^2 = \boxed{12} $
15. $ 2 - 9^2 = \boxed{-79} $
16. $ 5^3 + 1 = \boxed{126} $

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✔ All problems solved! Let me know if you'd like this in a printable format or with explanations for any specific one.