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十几道简便运算,急333333X333333654321X909090+654321X90909034X3535-35X3434345345/1501541.2X8.1+11X9.25+537X0.19[(35.16X0.25+38.42/2)X0.2-1.63-2.36]/0.25(78.6-0.786X25+0.75X21.4)/15X2001172.4X6.2+1724Xo.3813.6X37.5+92/0.8(125X74+125X26)X8(1.4
题目详情
十几道简便运算,急
333333X333333
654321X909090+654321X909090
34X3535-35X3434
345345/15015
41.2X8.1+11X9.25+537X0.19
[(35.16X0.25+38.42/2)X0.2-1.63-2.36]/0.25
(78.6-0.786X25+0.75X21.4)/15X2001
172.4X6.2+1724Xo.38
13.6X37.5+92/0.8
(125X74+125X26)X8
(1.4+3.5/1.25),2.4-0.35
562X397/(281X387)
36X2.54+1.8X49.2
3.6X31.4+68.9X6.4
(200041-20.0041)/(400082-40.0082)
1999X1998-1998X1997-1997X1996+1996X1995
999+9999+999X9999+99999/99999
我知道这些题很麻烦,但我下午有事,这些题就麻烦大家了,本人献上80分.
333333X333333
654321X909090+654321X909090
34X3535-35X3434
345345/15015
41.2X8.1+11X9.25+537X0.19
[(35.16X0.25+38.42/2)X0.2-1.63-2.36]/0.25
(78.6-0.786X25+0.75X21.4)/15X2001
172.4X6.2+1724Xo.38
13.6X37.5+92/0.8
(125X74+125X26)X8
(1.4+3.5/1.25),2.4-0.35
562X397/(281X387)
36X2.54+1.8X49.2
3.6X31.4+68.9X6.4
(200041-20.0041)/(400082-40.0082)
1999X1998-1998X1997-1997X1996+1996X1995
999+9999+999X9999+99999/99999
我知道这些题很麻烦,但我下午有事,这些题就麻烦大家了,本人献上80分.
▼优质解答
答案和解析
333333×333333
=(300000×30000)+(30000×30000)+(3000×3000)+(300×300)+(30×30)+(3×3)
=90000000000+900000000+9000000+90000+900+9
=90909090909
=(300000×30000)+(30000×30000)+(3000×3000)+(300×300)+(30×30)+(3×3)
=90000000000+900000000+9000000+90000+900+9
=90909090909
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