Question

Completați spațiile punctate:
a) 3,25m+ 12dm=.... cm
b)15,2 dam+.... dm= 235m
c) 9,8km+ 4,2dam+ 30 hm=.... dam
d) 130mm+...cm+17dm=7m
e)0,02dam+15m+...hm=20 m
f) 17,2 cm-...dm=100 mm
AJUTOOOR! URGENT! DAU COROANĂ!

Answer 1

a) 325 cm +120 cm =445 cm

b) 152 m+ dm =235 m
dm=235-152=83m , 8,3 dm
15,2dam+8,3dm=235 m

c)980 dam+4,2 dam+300 dam=1284,2 dam

d)0,130 m+ ? cm +1,7 m=7 m
1,83 m +? cm =7m
?cm=7m-1,83 m
?cm=5,17 m , 517 cm
130 mm+517 cm+17dm=7m

e) 0,2 m+15m+?hm=20m
15,2 m +?hm=20m
?hm=20 m-15,2m
?hm=4,8 m adica 0, 048 hm
0,02 dam+15m+0,048 hm=20 m

f) 172 mm - ?dm=100 mm
?dm=172 mm-100mm
dm=72 mm adica 0,72 dm
17,2 cm-0,72 dm=100mm