a) 3:20 − 1:16 =
[R]

b) 9:04 − 5:46 =
[R]

c) 9:14 − 8:03 =
[R]

d) 7:23 − 5:00 =
[R]

e) 9:42 − 7:05 =
[R]

f) 7:03 − 3:34 =
[R]

g) 5:35 − 3:10 =
[R]

h) 9:20 − 6:17 =
[R]

i) 12:45 − 10:06 =
[R]

j) 7:00 − 5:37 =
[R]