Question

Ajutati-ma va rog . Calculeaza folosind grupari de termeni 1)28×3=(20+8)×3=20×3+8×3=...................=............
2) 175×6=(100+70+5)×6=100×6+70×6+5×6=..................................=.................................

Answer 1

1.)84=28x3=60+24= 84=84=84 adevarat 
2.)1050=175x6=600+420+30=1050=1050=1050 adevarat

Answer 2

1) 28×3=(20+8)×3=20×3+8×3=60 + 24 = 84
2) 175×6=(100+70+5)×6=100×6+70×6+5×6= 600+420+30 = 1050