0.28×9+0.28 6.6-0.78+2.4-3.22
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/04 04:36:04
0.28×9+0.28 6.6-0.78+2.4-3.22
![0.28×9+0.28 6.6-0.78+2.4-3.22](/uploads/image/z/1845804-12-4.jpg?t=0.28%C3%979%EF%BC%8B0.28+6.6%EF%BC%8D0.78%EF%BC%8B2.4%EF%BC%8D3.22)
0.28×9+0.28
=0.28×(9+1)
=0.28×10
=2.8
6.6-0.78+2.4-3.22
=(6.6+2.4)-(0.78+3.22)
=9-4
=5
=0.28×(9+1)
=0.28×10
=2.8
6.6-0.78+2.4-3.22
=(6.6+2.4)-(0.78+3.22)
=9-4
=5
0.28×9+0.28 6.6-0.78+2.4-3.22
95.7×0.28+6.3× 0.28- 0.28×2的简便计算
10-9.8+9.6-9.4+9.2-9+...+0.8-0.6+0.4-0.2
一个是:0.28×8.6+7.2×0.86
1+2-3-4+5+6-7-8+9+.+78-79-80+81
计算:(-6)-(+5)+(-9)+(-4)-(-9)
1-3+5-7+9-11+…+97-99+100=?
机算-1+2+3-4-5+6+7-8-9+10+11-12-……-2005+2006+2007-2008-2009的值?
-1+3-5+7-9+11-...+2007-2009+2011-2013+2015
1+2-3+4+5-6+7+8-9+.+58+56-60等于几?
2002+2001-2000-1999+1998+1997-1996-1995+……+10+9-8-7+6+5-4-3+
计算:1-2+3-4+5-6-7+8+9-10-11+12+.2001-2002-2003+2004+2005-2006