a) 7:07 − 3:43 =
[R]

b) 8:25 − 7:22 =
[R]

c) 9:01 − 6:23 =
[R]

d) 8:19 − 6:28 =
[R]

e) 9:13 − 7:31 =
[R]

f) 10:03 − 8:20 =
[R]

g) 8:26 − 5:13 =
[R]

h) 6:31 − 3:06 =
[R]

i) 11:13 − 7:30 =
[R]

j) 6:24 − 4:35 =
[R]