Question

7)52 + 23 - 2 x (3 + 9) =
8) 62 : 32 + 4 x 10 – 12 =
9)(72 - 1 ) : 3 + 2 x 5 =
10) 42- 10 + (23 - 5) =
11) 30 – (2 + 1)2+ 23 =
12) [ 42 + ( 5 – 3)3] : ( 9 – 7)3 = 13)(27+3.7)2 :{4.[800–(9.2+10)2]}. Ajuda por favor

Answer 1

Resposta:

7) 51

8) 29,9375

9)33,666...

10)50

11)47

12)72

13)71.424

Explicação passo-a-passo:

7) 52 + 23 - 2 x (3 + 9) =

52+23-2×12

75-24

51

8) 62 : 32 + 4 x 10 – 12 =

1,9375+40-12

41,9375-12

29,9375

9) (72 - 1 ) : 3 + 2 x 5 =

71÷3+2×5

23,666...+10

33,666...

10) 42- 10 + (23 - 5) =

42-10+18

32+18

50

11) 30 – (2 + 1)2+ 23 =

30-3×2+23

30-6+23

24+23

47

12) [ 42 + ( 5 – 3)3] : ( 9 – 7)3 =

[42+2×3]÷2×3=

48÷2×3=

24×3

72

13) (27+3.7)2 :{4.[800–(9.2+10)2]}=

48×2:{4×[800-28×2]}

48×2:{4×744}

48×2÷2976

48×1488

71.424