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简便计算26.39x36+26.39x83-26.39x19=3.45x6.8+65.5x0.68=1240x3.8+124x51+1.24x1100=简便计算0.035x935+0.035+3x0.035+0.035x61x0.5=15.37x7.88-9.37x7.83+1.537x21.2-93.7x0.262=2005x2005-2004x2006
题目详情
简便计算 26.39x36+26.39x83-26.39x19 = 3.45x6.8+65.5x0.68= 1240x3.8+124x51+1.24x1100=
简便计算0.035x935+0.035+3x0.035+0.035x61x0.5=
15.37x7.88-9.37x7.83+1.537x21.2-93.7x0.262=
2005x2005-2004x2006
简便计算0.035x935+0.035+3x0.035+0.035x61x0.5=
15.37x7.88-9.37x7.83+1.537x21.2-93.7x0.262=
2005x2005-2004x2006
▼优质解答
答案和解析
26.39x36+26.39x83-26.39x19 =26.39x（36+83-19）=26.39x100=2639
3.45x6.8+65.5x0.68=3.45x6.8+6.55x6.8=6.8x10=68
1240x3.8+124x51+1.24x1100=124x38+124x51+124x11=124x100=12400
0.035x935+0.035+3x0.035+0.035x61x0.5=0.035x(935+1+3+30.5)=0.035x969.5=33.9325
15.37x7.88-9.37x7.83+1.537x21.2-93.7x0.262=15.37x10-9.37x10=60
2005x2005-2004x2006=2005x2005-(2005+1)x(2005-1)=2005^2-2005^2+1=1
3.45x6.8+65.5x0.68=3.45x6.8+6.55x6.8=6.8x10=68
1240x3.8+124x51+1.24x1100=124x38+124x51+124x11=124x100=12400
0.035x935+0.035+3x0.035+0.035x61x0.5=0.035x(935+1+3+30.5)=0.035x969.5=33.9325
15.37x7.88-9.37x7.83+1.537x21.2-93.7x0.262=15.37x10-9.37x10=60
2005x2005-2004x2006=2005x2005-(2005+1)x(2005-1)=2005^2-2005^2+1=1
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