Question

4 Calculează, completând spațiile libere: a) 75 x 1 000 = 75 x (10 x ____) = = (75 x ____)____= - = b) 303 x 1 000 = 303 x (10 x 100) = = = = (303 X_-_- - X___ ---- = -c) 78 X 11 = 78 X (10 +----) = 78 x + 78 ____ X - = Matematică​

Answer 1

Răspuns:

75x1000=75x(10x100)

=(75x10)x100

=750x100

=7500

303x1000=303x(10x100)

=(303x10)x100

=3030x100

=303000

78x11=78x(10+1)

=78x10+78x1

=780+78

=858