11x22+0.22x3300+330x4.4=

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11x22+0.22x3300+330x4.4=
11x22+0.22x3300+330x4.4=

11x22+0.22x3300+330x4.4=
11x22+0.22x3300+330x4.4
=11*22+22*33+66*22
=11*22(1+3+6)
=242*10
=2420

11x22+0.22x3300+330x4.4
=11x22+22x33+33x2x22
=(11+33+66)x22
=2420

原式=11*11*2+11*11*2*3+11*11*3*4=11*11*(1*2+2*3+3*4)=121*20=2420

11x22+0.22x3300+330x4.4
=11x22+22x33+33x44
=22x(11+33)+33x44
=22x44+33x44
=(22+33)x44
=55x44
=2420

2420