Question

b) 9-(5 - 1 + 2) =
c) ( 10 –4)-(9-8) + 3 =
d) 50 - [37 - (15 - 8)]=
e) 28 + (50 - (24 - 2) -10] =
f) 52 - {12 + ( 15 -(8-4)!} =
g) 25 + 12 + [2-(8-6) + 2 ]) =
h) 52 + 23 - 2 x (3 + 9) =
i) 62: 32 + 4 X 10 - 12 =
) (72 - 1): 3 + 2 x 5 =
k) 42.10 + (23-5) =
1) 30 - (2 + 1)2+ 2 =
m) 42 + (5-3)) : (9 - 7) =
/-8) + (7-4) -
​

Answer 1

b) 9-(5 - 1 + 2) =

9 - (4 + 2)=

9 - 6 = 3

c) ( 10 –4)-(9-8) + 3 =

(6) - (1) + 3=

5 +3 = 8

d) 50 - [37 - (15 - 8)]=

50 - [37 - 7]=

50 - 30 = 20

e) 28 + (50 - (24 - 2) -10] =

28 + (50 - 22 - 10) =

28 + (28 - 10)=

28 + 18 = 46

f) 52 - {12 + ( 15 -(8-4)!} =

52 - {12 + ( 15 - (4)!}=

52 - {12 + ( 15 - 24)}=

52 - {12 +(-9)}=

52 - 3= 49

g) 25 + 12 + [2-(8-6) + 2 ]) =

37 + [2 - 2 + 2]=

37 + 2 =39

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

75 - 2. 12

75 - 24= 51

i) 62: 32 + 4 X 10 - 12 =

(acho que essa tem algum número errado)

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

71:3 + 10=

k) 42.10 + (23-5) =

420 + 22=442

1) 30 - (2 + 1)2+ 2 =

30 - 3.2 + 2=

30 - 6 + 2=

24 + 2= 26

m) 42 + (5-3)) : (9 - 7) =

42 + 2 : 2

42 + 1= 43