Question

Va rog mult de tot!Dau 20 de puncte !Exercițiul 5*!!!*

Answer 1

a)

305 m - 17000 mm + 430 dm = ? m

17000 mm : 1000 = 17 m

430 dm : 10 = 43 m

305 m - 17 m + 43 m

288 m + 43 m = 331 m

b)

600 mm - 25 cm + 3 m = ? cm

600 mm : 10 = 60 cm

3 m = 3 × 100 = 300 cm

60 cm - 25 cm + 300 cm =

35 cm + 300 cm = 335 cm

c)

960 cm - 6 m + 58 dm - 1200 mm = ? dm

960 cm : 10 = 96 dm

6 m × 10 = 60 dm

1200 mm : 100 = 12 dm

96 dm - 60 dm + 58 dm - 12 dm =

36 dm + 58 dm - 12 dm =

94 dm - 12 dm = 82 dm

d )

800 m - 2700 cm - 3500 dm + 7000 mm = ? m

2700 : 100 = 27 m

3500 : 10 = 350 m

7000 m : 1000 = 7 m

800 m - 27 m - 350 m + 7 m =

773 m - 350 m + 7 m =

423 m + 7 m = 430 m

SPER CA TE-AM AJUTAT!