a) 10:10 − 7:06 =
[R]

b) 10:49 − 7:00 =
[R]

c) 12:06 − 8:26 =
[R]

d) 5:30 − 2:15 =
[R]

e) 8:04 − 4:48 =
[R]

f) 11:20 − 8:26 =
[R]

g) 5:34 − 4:15 =
[R]

h) 7:02 − 5:03 =
[R]

i) 11:05 − 9:30 =
[R]

j) 6:19 − 4:02 =
[R]