Question

a)3,8 m + 30 cm =___m b)1,5 km + 8,00 m +2,3 km =___ km

Answer 1

a)3.83m,pois se transformar 30 cm em metros dá 0.030,ai soma mais 3.8

b)3808 km

Answer 2

A)1m----100cm
xm-----3cm
100x=3
x=3/100
x=0.03

3.8m+0.03m=3.83m


B)1km------1000m
xkm------8m
1000x=8
x=8/1000
x=0.008

2.3km+0.008km+1.5km=3.808km