Question

a)0,48m+57cm=...cm
b)1,4kg+320g=...kg
c)2h18 min.-56min.=...min.
Dau coroana va rog urgent

Answer 1

a) 0,48m=48cm        1m=100cm

48cm+57cm=105cm

b) 1kg=1000g

320g=0,32kg

1,4kg + 0,32kg = 1,72kg

c) 2h*60+18 - 56 = 82 min

1h=60min

Answer 2

$\bold{a)} \ 0,48 \ m+57 \ cm=48 \ cm+57 \ cm=\boxed{105 \ cm}; \\ \bold{b)} \ 1,4 \ kg+320 \ g=1,4 \ kg+0,32 \ kg=\boxed{1,72 \ kg}; \\ \bold{c)} \ 2\ h\ 18 \ min-56 \ min=138 \ min-56 \ min=\boxed{82 \ min}.$