Question

Tolong di bantu kakakku...
1. 40hm+59dam=.....dm
2. 40jam-105detik=......detik
3. 6minggu+18hari=......hari

Answer 1

1)40 hm+59 dam=.....dm
40 hm=40× 1000=40.000
59 dam=59×100=5.900
=40.000 dm+5.900dm
=45.900 dm
2)40 jam-105detik...detik
=40 jam=40×3.600=144ribu
105 detik=105 detik
=144.000detik-105 detik
=143.895
3)6minggu+18hari...hari
=6 minggu =6×7=42
18 hari=18
=42 hari + 18 hari
=60 hari