selesaikan soal berikut! A.20 m+120 dm-270 cm=..... dm B.1.500 mm+25 m=...... mm C.5 km-12 hm-6 dam=..... dam D.75 km-12 hm+150 m=..... dam

a. 1 m = 10 dm, 20 m = 20×10=200 dm
1 cm=0,1 dm, 270 cm=270×0,1=27 dm

20 m+120 dm-270 cm
= 200 dm+120 dm-27 dm
=320 dm-27 dm
=293 dm

b. 1 m =1000 mm, 25 m=25×1000=25.000 mm

1.500 mm+25 m
=1.500 + 25.000 mm
=26.500 mm

c. 1 km=100 dam,5 km=5×100=500 dam
1 hm=10 dam, 12 hm=12×10=120 dam

5 km-12 hm-6 dam
=500 dam-120 dam-6 dam
=380 dam-6 dam
=374 dam

d. 75 km=75×100=7.500 dam
12 hm=12×10=120 dam
1 m=0,1 dam , 150 m=150×0,1=15 dam

75 km -12 hm+150 m
=7.500 -120 +15 dam
=7.380+15 dam
=7.395 dam

semoga membantu :)