Question

Complectiaza cu numerele care lipsesc.
A)40 min = ? s
720 min = ? s
12 h = ? min = ? s
7 zile = ? h = ? min
B) 18 h 10 min = ? min
35 min 5 s = ? s
3 zile 12 h = ? h
2 zile 24 h = ? h

Answer 1

a)2400 s
 43200s
720 min=43200s
168h=10080 h
b)1090 min
2105 s
84h
72h

Answer 2

A)40 min = 40x60s= 2400s
720 min = 720x60s= 43.200s 
12 h = 12x60 min =720 min=720x60s= 43.200 s
7 zile = 7x24 h = 168h=168x60 min=10.080 min
B) 18 h 10 min = 18x60 min+10 min=1080 min+10min=1090 min
35 min 5 s = 35x60s+5 s=2100s+5s=2105s
3 zile 12 h = 3x24h+12 h=72h+12h=84h
2 zile 24 h = 2x24h+24 h=48h+24h=72h