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有奖问答,0.8888×10.4-0.1111×3.2=?(36963-369.63)÷(24642-246.42)=?(1+1.8)+(2+1.8×2)+(3+1.8×3)+……+(100+1.8×100)=?(2.17+5.49+3.81)×(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)×(2.17+5.49)=?递等式

题目详情
有奖问答,
0.8888×10.4-0.1111×3.2=?
(36963-369.63)÷(24642-246.42)=?
(1+1.8)+(2+1.8×2)+(3+1.8×3)+……+(100+1.8×100)=?
(2.17+5.49+3.81)×(5.49+2.17+9.2)-(3.81+2.17+5.49+9.2)×(2.17+5.49)=?
递等式简便运算,越快越好,
▼优质解答
答案和解析
0.8888×10.4-0.1111×3.2=0.8888×10.4-0.1111×8×0.4=0.8888×10.4-0.8888×0.4=0.8888×(10.4-0.4)=0.8888×10=8.888(36963-369.63)÷(24642-246.42)=36963×(1-0.01)÷[24642×(1-0.01)]=36963÷2464...