140×11=140×(10+1)
=1400+140
=1540
250×11=250×(10+1)
=2500+250
=2750
121×11=121×(10+1)
=1210+121
=1331
301×11=301×(10+1)
=3010+301
=3311
222×11=222×(10+1)
=2220+222
=2442
145×11=145×(10+1)
=1450+145
=1495
Deci inmultim 145 cu 10,dupa cu 1 si adunam inmultirile.
