优质解答
口算1.10－5.4＝ 2.4÷20＝ 3.5×200＝ 4.1.5－0.06＝ 5.0.75÷15＝ 6.0.4×0.8＝ 7.4×0.25＝ 8.0.36＋1.54＝ 9.1.01×99＝ 10.420÷35＝ 11.25×12＝ 12.135÷0.5＝ 13.3/4+1/4= 14.2+4/9= 15.3-2/3= 16.3/4-1/2= 17.1/6+1/2-1/6= 18.7.5-(2.5+3.8)= 19.7/8+3/8= 20.3/10+1/5= 21.4/5-7/10= 22.2-1/6-1/3= 23.0.51÷17＝ 24.32.8＋19＝ 25.5.2÷1.3＝ 26.1.6×0.4＝ 简便计算 1.1-2+3-4+5-6+7-8+9-10+11-12+................+2003-2004+2005-2006+2007 480+325+75 295-128-72 43×25×4 102×43 66×38-987÷2166×38-987÷21 1.25*17.6+36.1/0.8+2.36*12.5 7.5*2.3+1.9*2.5 5*2.3+1.9*2.5 2004/2003*2005 276*543-267/276+543*275 2002+2001-2000-1999+1998+1997-1996-995+……+2+1 1/3+1/15++1/35+1/63+九十1/9 1/7-1/9+1/9-1/11) 0.49÷1.41.25×2.5×323.6－0.6×2 3.65×10.13.6－3.6×0.815.2÷0.25÷4 5.6÷3.59.6÷0.8÷0.44.2×99＋4.2 0.89×100.1146.5－(23＋46.5)17.8÷(1.78×4) 5.83×2＋4.27(45.9－32.7)÷8÷0.1259.7×99＋9.7 36×12.5×815.6×13.1－15.6－15.6×2.10.65×101 27.5×3.7－7.5×3.78.54÷2.5÷0.43.83×4.56＋3.83×5.44 9.9×0.625×101－62.5 9.9×8.6＋0.86 0.46×7.5＋0.46×2.5 6×8.04＋6.4×8.04－8.04 5.4×0.15÷0.2+4.6×0.15 55×10.43+104.3×4.4+104.3×0.1 方程 5/17-x=1/5 5/9+x=23 6x-x=0.5 x-4/9=2/3 4x+20=3.9 4x+12=50 17+8.34x=50-12 4x=38 2.3x-1.02=0.36 24x=0.6 X-5.7=2.15 155X-2X=18 3X+0.7=5 3.5×2=4.2+x 26×1.5=2x+10 0.5×16―16×0.2=4x 139.25－X=0.403 9÷X=0.3 X÷0.5=2.6 x＋13＝33.3－5x＝80 1.8+6x＝54 6.7x－60.3＝6.7 9＋4x＝40 0.2x－0.4＋0.5＝3.7 9.4x－0.4x＝16.2
口算1.10－5.4＝ 2.4÷20＝ 3.5×200＝ 4.1.5－0.06＝ 5.0.75÷15＝ 6.0.4×0.8＝ 7.4×0.25＝ 8.0.36＋1.54＝ 9.1.01×99＝ 10.420÷35＝ 11.25×12＝ 12.135÷0.5＝ 13.3/4+1/4= 14.2+4/9= 15.3-2/3= 16.3/4-1/2= 17.1/6+1/2-1/6= 18.7.5-(2.5+3.8)= 19.7/8+3/8= 20.3/10+1/5= 21.4/5-7/10= 22.2-1/6-1/3= 23.0.51÷17＝ 24.32.8＋19＝ 25.5.2÷1.3＝ 26.1.6×0.4＝ 简便计算 1.1-2+3-4+5-6+7-8+9-10+11-12+................+2003-2004+2005-2006+2007 480+325+75 295-128-72 43×25×4 102×43 66×38-987÷2166×38-987÷21 1.25*17.6+36.1/0.8+2.36*12.5 7.5*2.3+1.9*2.5 5*2.3+1.9*2.5 2004/2003*2005 276*543-267/276+543*275 2002+2001-2000-1999+1998+1997-1996-995+……+2+1 1/3+1/15++1/35+1/63+九十1/9 1/7-1/9+1/9-1/11) 0.49÷1.41.25×2.5×323.6－0.6×2 3.65×10.13.6－3.6×0.815.2÷0.25÷4 5.6÷3.59.6÷0.8÷0.44.2×99＋4.2 0.89×100.1146.5－(23＋46.5)17.8÷(1.78×4) 5.83×2＋4.27(45.9－32.7)÷8÷0.1259.7×99＋9.7 36×12.5×815.6×13.1－15.6－15.6×2.10.65×101 27.5×3.7－7.5×3.78.54÷2.5÷0.43.83×4.56＋3.83×5.44 9.9×0.625×101－62.5 9.9×8.6＋0.86 0.46×7.5＋0.46×2.5 6×8.04＋6.4×8.04－8.04 5.4×0.15÷0.2+4.6×0.15 55×10.43+104.3×4.4+104.3×0.1 方程 5/17-x=1/5 5/9+x=23 6x-x=0.5 x-4/9=2/3 4x+20=3.9 4x+12=50 17+8.34x=50-12 4x=38 2.3x-1.02=0.36 24x=0.6 X-5.7=2.15 155X-2X=18 3X+0.7=5 3.5×2=4.2+x 26×1.5=2x+10 0.5×16―16×0.2=4x 139.25－X=0.403 9÷X=0.3 X÷0.5=2.6 x＋13＝33.3－5x＝80 1.8+6x＝54 6.7x－60.3＝6.7 9＋4x＝40 0.2x－0.4＋0.5＝3.7 9.4x－0.4x＝16.2