简便计算.方程.口算等
第1个回答 2009-12-29
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
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
参考资料:
本回答被提问者采纳第2个回答 2009-12-29
方程:
3x=3/5
5x=2/5
x-1/4=1/2
1/2x=1/4
3/x=3/5
2x=4/5
1/4x=5
5/8x=16
简便计算:
2+4+6+8+10+……+100
1*2+2*2+3*2+4*2+……+10*2
0+1+1+2+3+5+8+13+21+34+55
1998+99
2099-101
33+54+46+67
2/5 +2/7 -1 +4/7 +3/5
12*1/3*1/4
25*32*125
1-5/12-4/12+2/4
3x=3/5
5x=2/5
x-1/4=1/2
1/2x=1/4
3/x=3/5
2x=4/5
1/4x=5
5/8x=16
简便计算:
2+4+6+8+10+……+100
1*2+2*2+3*2+4*2+……+10*2
0+1+1+2+3+5+8+13+21+34+55
1998+99
2099-101
33+54+46+67
2/5 +2/7 -1 +4/7 +3/5
12*1/3*1/4
25*32*125
1-5/12-4/12+2/4
第3个回答 2012-08-26
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
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
第4个回答 2009-12-29
2X=2
X=1
X=1
参考资料:瞎想的
第5个回答 2009-12-29