11×22+22×33+33×44+44×55+55×66简便运算
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11×22+22×33+33×44+44×55+55×66简便运算
11×22+22×33+33×44+44×55+55×66
简便运算
11×22+22×33+33×44+44×55+55×66简便运算
11×22+22×33+33×44+44×55+55×66
=11×22(1+3+6+10+15)
=242×35
=8470
11*(11+33*2+44*3+55*466*5)=11*11*(1+6+12+20+30)=8470
11×22+22×33+33×44+44×55+55×66
=11×11×(1×2 + 2×3 + 3×4 + 4×5 + 5×6)
=121×(2 + 6 + 12 + 20 + 30)
=121×80
=9680
原题=
11×11×2=11×11×2×3+11×11×3×4+11×11×4×5+11×11×5×6
=
121×(2+6+12+20+30)
=
121×70
=
8470
简便=8470
11×22+22×33+33×44+44×55+55×66简便运算
11×22+22×33+33×44+44×55+55×66怎么算
11×22+22×33+33×44+44×55简便运算
11×22+22×33+33×44+…+77×88+88×99=
11×22+22×33+33×44+…+77×88+88×99=
33+44+55+66+77+88+99×11+22+33+44+55+66+77+88+99+100+110+120+130+140+150+160+170+180+190+200
11,22,33,44
22×77+44×55+33×66+66×88的简便运算
11+22+33+44=?
11+22+33+44-1?
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
﹝﹣22﹞×﹝﹣99﹞+11×﹝﹣66﹞-33×44
11*22+22*33+33*44简便方法运算.
55+44+33+22+11=
11*22*33*44=?请秒回
1+1+11+22+33+44=
11+22+33+44+55+66+66+55+44+33+22+11=?
41×2+44×22+4444的简便运算