Cara
30 menit + 40 menit = 70 menit
Total = 70 menit = 1 jam + 10 menit
7.) 50 menit + 45 menit = ...
Cara
50 menit + 45 menit = 95 menit
Total = 95 menit = 1 jam 35 menit
8.) 2 jam 20 menit - 1 jam 50 menit = ...
Cara
1 jam 80 menit - 1 jam 50 menit = 0 jam 30 menit
Jawaban = 30 menit
9.) 5 jam 15 menit - 2 jam 25 menit = ...