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简便计算:0.83x10.1,26.7-0.5x0.5-0.75,5.82-(6.2-4.18),(2.08x2/2.08x0.3)/6
题目详情
简便计算:0.83x10.1,26.7-0.5x0.5-0.75,5.82-(6.2-4.18),(2.08x2/2.08x0.3)/6
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答案和解析
0.83x10.1
=0.83X(10+0.1)
=0.83X10+0.83X0.1
=8.3+0.083
=8.383
26.7-0.5x0.5-0.75
=26.7-0.25-0.75
=26.7-(0.25+0.75)
=26.7-1
=25.7
5.82-(6.2-4.18)
=5.82-6.2+4.18
=(5.82+4.18)-6.2
=10-6.2
=3.8
(2.08x2/2.08x0.3)/6
=(2/0.3)/6
=20/3 X 1/6
=10/9
=0.83X(10+0.1)
=0.83X10+0.83X0.1
=8.3+0.083
=8.383
26.7-0.5x0.5-0.75
=26.7-0.25-0.75
=26.7-(0.25+0.75)
=26.7-1
=25.7
5.82-(6.2-4.18)
=5.82-6.2+4.18
=(5.82+4.18)-6.2
=10-6.2
=3.8
(2.08x2/2.08x0.3)/6
=(2/0.3)/6
=20/3 X 1/6
=10/9
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