Question

exprimir os resultados respectivamente em km e cm:
 a)
21,32 hm+309 dm +0,15.2 km + 432,52 m + 1.235 dam 

b)
(48,392 km - 832 dam) + [ 3,568 km - ( 8,01 hm - 223 m ) ]

Answer 1

km hm dam m dm cm mm


 a) 21,32 hm+309 dm +0,15.2 km + 432,52 m + 1.235 dam 

21,32 hm a km = 2,132km   ;  309dm a km=  0,0309km ; 0,152km
432,52m a km = 0,43252km ; 1235dam a km = 1,235km

2,132km + 0,0309km + 0,152km + 0,43252km + 1,235km = 3,98242km

para cm

21,32 hm a cm = 213200cm   ;  309dm a cm=  3090cm ; 0,152km a cm=15200cm
432,52m a cm = 43252cm ; 1235dam a cm = 123500cm

 213200cm + 3090cm + 15200cm + 43252cm + 123500cm = 398242


b) (48,392 km - 832 dam) + [ 3,568 km - ( 8,01 hm - 223 m ) ]

para km:

(48,392 km - 8,32km) + [ 3,568 km - ( 0,801 km -0,223km ) ]

40,072 + 3,568 - 0,578

43,062

para cm

(48,392 km - 832 dam) + [ 3,568 km - ( 8,01 hm - 223 m ) ]

(4839200 - 832000) + [ 356800 - (80100 - 22300)]

4007200 +356800 - 57800

4306200