Question

3) Calcule
a) 10 - ( 15 + 25) =
b) 1 - (25-18) =
c) 40 -18 - ( 10 +12) =
d) (2 - 7) -(8-13) =
e) 7- (3 + 2 + 1) - 6 =
f) -15 - (3 + 25) + 4 =
g) -32 -1 - (-12 + 14) =
h) 7 + (-5-6) - (-9 + 3) =
1)-(+4-6) + (2-3) =
j) -6 - (2-7 + 1 - 5) + 1 =​

Answer 1

Explicação passo-a-passo:

a) 10 - ( 15 + 25)

10-(+40)

10-40

-30

b) 1 - (25-18)

1-(+7)

1-7

-6

c) 40 -18 - ( 10 +12)

22-(+22)

22-22

0

d) (2 - 7) -(8-13)

(-5)-(-5)

-5+5

0

e) 7- (3 + 2 + 1) - 6

7-(5+1)-6

7-(+6)-6

7-6-6

7-12

-5

f) -15 - (3 + 25) + 4

-15-(+28)+4

-15-28+4

-43+4

-39

g) -32 -1 - (-12 + 14)

-33-(+2)

-33-2

-35

h) 7 + (-5-6) - (-9 + 3)

7+(-11)-(-6)

7-11+6

-4+6

+2

i) -(+4-6) + (2-3)

-(-2)+(-1)

+2-1

+1

j) -6 - (2-7 + 1 - 5) + 1 =

-6-(-5-4)+1

-6-(-9)+1

-6+9+1

-6+10

+4