Question

Calcule o valor das expressões:

a) 1⁸⁰ + 0⁷⁰ =  

b) 2³ x 5 + 3² =  

c) 70⁰+ 0⁷⁰ - 1 =  

d) 3 x 7¹ - 4 x 5⁰ =  

e) 3⁴- 2⁴: 8 – 3 x 4 =  

f) 5² + 3 x 2 – 4 =  

g) 5 x 2² + 3 – 8 =  

h) 5² - 3 x 2² - 1 =  

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Answer 1

Resposta:

a) 80

b) 49

c) 0

d) 17

e) 16,25

f) 27

g) 15

h) 12

Answer 2

a) 1⁸⁰ + 0⁷⁰ =  

= 1 + 0

= 1

b) 2³ x 5 + 3² =  

= 8 × 5 + 9

= 40 +9

= 49

c) 70⁰+ 0⁷⁰ - 1 =

= 1 + 0 - 1

= 0

d) 3 x 7¹ - 4 x 5⁰ =  

= 3 × 7 - 4 × 1

= 21 - 4

= 17

e) 3⁴- 2⁴: 8 – 3 x 4 =

= 81 - 16 : 8 - 12

= 81 - 2 - 12

= 79 - 12

= 67

f) 5² + 3 x 2 – 4 =  

= 25 + 6 - 4

= 31 - 4

= 27

g) 5 x 2² + 3 – 8 =  

= 5 × 4 + 3 - 8

= 20 + 3 - 8

= 23 - 8

= 15

h) 5² - 3 x 2² - 1 =  

= 25 - 3 × 4 - 1

= 25 - 12 - 1

= 13 - 1

= 12