Question

Questão 10.
Efetue as operações:
(a) - 20+(+43)
(b) (+7)-(+9) =
(c) 52-(-11) =
(d) 0-(-41) =
(e)-37-(-29) =
(f) (-2)-(+16) =
(g) +33+(-51) =
h) (-7)-(-11) =
(i) 0 - (-15) =
(j) (+7).(+9)=
(k)-(-1+10) =
(l) (-9).0 =​

Answer 1

Resposta:

a)-20+(+43)

-20+43= 23

b)(+7)-(+9)

7-9= -2

c)52-(-11)

52+11= 63

d)0-(-41)= 41

e)-37-(-29)

-37+29= -8

f)(-2)-(+16)

-2-16= -18

g)+33+(-51)

33-51= -18

h)(-7)-(-11)

-7+11= 4

i)0-(-15)= 15

j)(+7).(+9)

7.9= 63

k)-(-1+10)= -9

l)(-9).0= 0