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÷21 66×38-987÷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÷1.4 1.25×2.5×32 3.6－0.6×2
3.65×10.1 3.6－3.6×0.8 15.2÷0.25÷4
5.6÷3.5 9.6÷0.8÷0.4 4.2×99＋4.2
0.89×100.1 146.5－(23＋46.5) 17.8÷(1.78×4)
5.83×2＋4.27 (45.9－32.7)÷8÷0.125 9.7×99＋9.7
36×12.5×8 15.6×13.1－15.6－15.6×2.1 0.65×101
27.5×3.7－7.5×3.7 8.54÷2.5÷0.4 3.83×4.56＋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+8.3 4x=50-12
4x=38
2.3x-1.02=0.36
24 x=0.6
X-5.7=2.15
15 5X-2X=18
3X+0.7=5
3.5×2= 4.2+x
26×1.5= 2x+10
0.5×16―16×0.2=4x
13 9.25－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
