please tolong bntu nmr 1-3 aja pke cranya tolong ya...

1. 1 [tex] \frac{1}{2} [/tex] kg x 5 kodi.
1 [tex] \frac{1}{2} [/tex] = [tex] \frac{3}{2} [/tex] kg
1 kodi = 20 buah
5 kodi = 20 x 5 = 100 buah.

[tex] \frac{3}{2} [/tex] x 100
= 150 buah.

2. 5000 m + 2 km - 300 dam
= (5000 m /1000) + 2 km - (300 dam/100)
= 5 + 2 - 3
= 4 km

3. 8 ton - 5 kuintal + 10 pon
= (8 ton x 1000) - (5 kuintal x 100) + (10 pon x 0,5)
= 8000 - 500 + 5 kg
= 7505 kg.