(1)0.65+(-1.9)+(-0.1)+(-0.65) (2)(-5.4)+0.2+(-0.6)+0.8 (3)0.65+(-1.9)+(-0.1)+(-0.6(4)45+(-9)+(-91)+15求大家帮帮忙,这是下学期的,我还没学,这四道实在不会要赶快,马上就要交了
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(1)0.65+(-1.9)+(-0.1)+(-0.65) (2)(-5.4)+0.2+(-0.6)+0.8 (3)0.65+(-1.9)+(-0.1)+(-0.6(4)45+(-9)+(-91)+15求大家帮帮忙,这是下学期的,我还没学,这四道实在不会要赶快,马上就要交了
(1)0.65+(-1.9)+(-0.1)+(-0.65) (2)(-5.4)+0.2+(-0.6)+0.8 (3)0.65+(-1.9)+(-0.1)+(-0.6
(4)45+(-9)+(-91)+15求大家帮帮忙,这是下学期的,我还没学,这四道实在不会
要赶快,马上就要交了
(1)0.65+(-1.9)+(-0.1)+(-0.65) (2)(-5.4)+0.2+(-0.6)+0.8 (3)0.65+(-1.9)+(-0.1)+(-0.6(4)45+(-9)+(-91)+15求大家帮帮忙,这是下学期的,我还没学,这四道实在不会要赶快,马上就要交了
(1)0.65+(-1.9)+(-0.1)+(-0.65)
=-2
(2)(-5.4)+0.2+(-0.6)+0.8
=(-5.4)+(-0.6)+0.2+0.8
=-6+1
=-5
(3)0.65+(-1.9)+(-0.1)+(-0.6)
=0.65-2.6
=-1.95
(4)45+(-9)+(-91)+15
=45+15+(-9)+(-91)
=60-100
=-40
(1)0.65+(-1.9)+(-0.1)+(-0.65) (2)(-5.4)+0.2+(-0.6)+0.8 (3)0.65+(-1.9)+(-0.1)+(-0.6(4)45+(-9)+(-91)+15求大家帮帮忙,这是下学期的,我还没学,这四道实在不会要赶快,马上就要交了
0.65×14+87×65%-65%
(+8)+(-10)+(-2)+(+1) (-5)+(+6)+(-3)+(-9)+(+4)+(+7) (+0.65)+(-1.9)+(-0.1)+(+0.65)
简便运算:18.1-5.7-4.3+1.9
0.65×14+87×65%-13/20
2008乘2009分之2007怎么写 算式还有4÷132+6×53 (0.86+0.86+0.86+0.86)×25 261-2.86×(6.25-641) 261-2.86×(6.25-641) 7.6×21÷[1.9-1.9×(1.9-1.9)] (70+681)×691 1-1÷2-1÷3-61 19.98
简算1-2+3-4+5-6+7-8+…+95-96+97-98+99
3.8+1.9(×-0.3)=2.1×
100+99-98+97-96+…+3-2+1
-1+3-5+7-… -17+19
65/100 ( x-1)=37/100(x +1)+0.1
2002+2001-2000-1999+1998+1997-1996-1995+……+10+9-8-7+6+5-4-3+2+1=?
1-3+5-7+9-11+…+97-99+100=?
1994+-1+2-3+4-5+…+1992-1993= .
100+99-98-97+96+95⋯+4+3-2-1
机算-1+2+3-4-5+6+7-8-9+10+11-12-……-2005+2006+2007-2008-2009的值?
-1+2-3+4-5+6-7.-2009+2010=?
1-2+3-4+5-6+7-8~-98+99