1. Hasil dari 5. 87m+2, 3dm-12cm

5.87m = 587 cm
2.3 dm = 23 cm
12 cm
=587+23-12
=598 cm/59.8 dm/5.98 m

5,87m + 2,3dm – 12cm
= 58,7dm + 2,3dm – 1,2dm
= 61dm – 1,2dm
= 59,8dm