Question

calcule mentalmente e expresse o resultado na forma decimal
a) 2+0, 1
b) 10+0, 333...
C) 1-3/4
d)0, 4+0, 444...
e)1, 5+6/10
f)3/4+1/4-1/2
Alguen sabe Com as contas ?

Answer 1

Boa tarde Jardeane

a) 2 + 0.1 = 2.1
b) 10 + 0.333... = 10.333...
C) 1- 3/4 = 4/4 - 3/4 = 1/4 = 0.25
d) 0.4 + 0.444... = 0.8444... 
e)1.5 + 6/10 = 1.5 + 0.6 = 2.1
f) 3/4 + 1/4 - 1/2 = 4/4 - 2/4 = 2/4 = 1/2 = 0.5 

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