Question

6) Efectuaţi:
a)-31 -0
b)0- (-36)
c)19-0
d)0- (+25)
e)6- (-6)
f)-6 -(+6)
g)-6 -(-6)
h)6- (+6)
i)18- (+5)
j)-50- (+17)
k)-200 -(-125)
l)-104 -(+56)
VA ROGG DAU COROANA
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Answer 1

Explicație pas cu pas:

se respectă:

$- ( + a) = - a$

$+ ( - a) = - a$

$- ( - a) = + a$

$+ ( + a) = + a$

$- a - b = - (a + b)$

$- a + b = - (a - b)$

a)-31 -0 = - 31

b)0- (-37) = 0 + 37 = 37

c)19-0 = 19

d)0- (+25) = 0 - 25 = - 25

e)6- (-6) = 6 + 6 = 12

f)-6 -(+6) = - 6 - 6 = - (6 + 6) = -12

g)-6 -(-6) = - 6 + 6 = 0

h)6- (+6) = 6 - 6 = 0

i)18- (+5) = 18 - 5 = 13

j)-50- (+17) = - 50 - 17 = - (50 + 17) = - 67

k)-200 -(-125) = - 200 + 125 = - (200 - 125) = - 75

l)-104 -(+56) = - 104 - 56 = - (104 + 56) = - 160