Question

Rotunjeste factorul mai mare si estimeaza produsul in fiecare caz pt a completa casetele libere.Verifica utilizand minicalculatorul.
28×3,59×2,185×4,5×190,2×398,1290×2,1087×3,597×6

Answer 1

Răspuns:

28 x 3 <  90

30 x 3 = 90  

59 x 3 <  180

60 x 3 = 180

185 x 4 < 800

200 x 4 = 800  

5 x 190 < 1000

5 x 200 = 1000  

2 x 398  < 800

2 x 400 = 800  

1290 x 2 <  2600

1300 x 2 = 2600  

1087 x 3 <  3300

1100 x 3 = 3300

597 x 6 < 3600

600 x 6 = 3600