Question

1) calcule o resultado de cada subtração a seguir:
a) 0-(+25)
b) 0 - (-15)
c)(-11) -(+32)
d)(+40)-(+47)
e)(-1)-(-64)
f)(+72)-(+60)
g)(-9)-(+28)
h)(+40)-(+80)
i)(+31)-(73)
j)(-105)-(-119)​

Answer 1

Bom dia.

a) 0-(+25) =

0 - 25 = -25

b) 0 - (-15) =

0 + 15 = 15

c)(-11) -(+32) =

-11 - 32 = -43

d)(+40)-(+47) =

40 - 47 = -7

e)(-1)-(-64) =

-1 + 64 = 63

f)(+72)-(+60) =

72 - 60 = 12

g)(-9)-(+28) =

-9 -28 = -37

h)(+40)-(+80) =

40 - 80 = -40

i)(+31)-(73) =

31 - 73 = -42

j)(-105)-(-119) =

-105 + 119 = 14

Regras dos sinais:

(+) com (+) = +

(-) com (-) = +

(+) com (-) = -

(-) com (+) = -