Question

Calculati si apoi completati spatiile punctate:
a)20m+2dam+31dm=...dm
b)36cm+120mm-2dm=...cm
c)148hm-1km+240dam+50m=...dam
d)76dam-25m+1800dm=...m
e)2600cm+17000mm-15m=...dm
f)640hm+24dam-150m=…dam
VĂ rog d-au COROANĂ!!!!!!!!

Answer 1

a)20m+2dam+31dm=200+200+31=431dm
b)36cm+120mm-2dm=36+12-20=28cm
c)148hm-1km+240dam+50m=1480-100+240+5=1625dam
d)76dam-25m+1800dm=760-25+180=915m
e)2600cm+17000mm-15m=260+170-150=280dm
f)640hm+24dam-150m=6400+24-15=6409dam

Answer 2

a) 20 m = 200 dm
  2 dam = 200 dm
200 dm + 200 dm + 31 dm = 431 dm
b) 120 mm = 12 cm
          2 dm = 20 cm  
36 cm + 12 cm - 20 cm =
48 cm - 20 cm =
28 cm
c) 148 hm = 1480 dam
         1 km = 100 dam
         50 m = 5 dam
1480 dam - 100 dam + 240 dam + 5 dam =
1380 dam + 240 dam = 5 dam =
1620 dam + 5 dam=
1625 dam
d) 76 dam = 760 m
  1800 dm = 180 m
760 m - 25 m + 180 m = 735 m + 180 m = 915 m
e) 2600 cm = 260 dm
 17000 mm = 170 dm
           15 m = 150 dm
260 dm + 170 dm - 150 dm =
430 dm - 150 dm =
280 dm
f) 640 hm = 6400 dam
     150 m = 15 dam
6400 dam + 24 dam - 15 dam = 6424 dam - 15 dam = 6409 dam

Sper ca te-am ajutat :)