Question

3. Calculează produsele după model. 82x111=82x(100+10+1)=82x100+82x10+82×1= = 8200+820+82=9102 35×111; 12×111; 36x111; 14×111; 18×111; 50 x 111.​

Answer 1

Răspuns:

35 × 111 = 35 × (100+10+1) = 35 × 100 + 35 × 10 + 35 × 1 =

= 3500+350+35 = 3885

12 × 111 = 12 × (100+10+1) = 12 × 100 + 12 × 10 + 12 × 1 =

= 1200+120+12 = 1332

36 × 111 = 36 × (100+10+1) = 36 × 100 + 36 × 10 + 36 × 1 =

= 3600+360+36 = 3996

14 × 111 = 14 × (100+10+1) = 14 × 100 + 14 × 10 + 14 × 1 =

= 1400+140+14 = 1554

18 × 111 = 18 × (100+10+1) = 18 × 100 + 18 × 10 + 18 × 1 =

= 1800+180+18 = 1998

50 × 111 = 50 × (100+10+1) = 50 × 100 + 50 × 10 + 50 × 1 =

= 5000+500+50 = 5550