Question

5- Calcule:
a) 2 + 6 =
b) 5 + 8 =
c) 7 - 8 =
d) 10 - 10 =
e) 10 – 11 =
f) 10/10
g)5/2=
h) 10.10 =
i) 5.10 =
j) 5. 10.2 =
k) 10 - 10.2 =
l) 5 - (10 + 2)/2 =
m) 2.5÷ 4 =

Answer 1

Explicação:

a) 2 + 6 = 8

b) 5 + 8 = 13

c) 7 - 8 = - 1

d) 10 - 10 = 0

e) 10 – 11 = - 1

f) 10/10 = 1

g)5/2= 2,5

h) 10.10 = 100

i) 5.10 = 50

j) 5. 10.2 = 50.2 = 100

k) 10 - 10.2 = 10- 20 = - 10

l) 5 - (10 + 2)/2 = - 7/2 = - 3,5

m) 2.5÷ 4 = 2.(1,25) = 2,5