Question

completeaza cu numerele care lipsesc ex 2

Answer 1

A) 40 min=40 minx60 s=2400 s
720min=720min x60 s=43200 s
12h=12x60 min=720 min x 60 s=43200 s
7 zile=7 zile x24h=168h x 60 min=10080 min

B) 1/3 din 1 h=1/3 x60 min=20 min
1/4 din 1 min=1/4 x 60 s=15 s
1/2 din 1 an=1/2 x12 luni= 6 luni

C) 18 h10 min=18 h x60 min+10 min=1080+10=1090 min

35 min 5 s=35 min x60 s+5s=2100+5=2105 s

3 zile 12h=3 zile x24 h+12h=72+12=84 h

2 zile 24h=2 zile+24h:24h=2 zile+1 zi=3 zile