Question

Exercițiul 4! VA rog!

Answer 1

31×11=36×(10+1)=36×10+36=360+36=396

47×21=47×(20+1)=47×20+47)=940+47=987

25×41=25×(42-1)=25×42-25=1025

125×19=125×(20-1)=125×20-125=2375

130×29=130×(30-1)=130×30-130=3770

88×101=88×(100+1)=88×100+88=8888

SPER CA TE-AM AJUTAT!

Answer 2

a) 36x11=36x(10+1)=36x10+36=360+36=396

b)47x21=47x(20+1)=47x20+47=940+47=987

c)25x41=25x(40+1)=25x40+25=1000+25=1025

d)125x19=125x(18+1)=125x18+125=2250+125=2375

e)130x29=130x(28+1)=130x28+130=3640+28=3668

f)88x101=88x(100+1)=88x100+88=8800+88=8888