欢迎您访问52IJ教育培训网,今天小编为你分享的数学方面的学习知识是通过网络精心收集整理的:“se99_...535×99&nbse;&nbse;&nbse;&nbse;&nbse; 人03-53[数学]”,注意:所整理内容不代表本站观点,如你有补充或疑问请在正文下方的评论处发表。下面是详细内容。
(l)25×f6×4,
=25×4×f6,
=l00×f6,
=f600;
(2)lf5×99,
=lf5×(l00-l),
=lf5×l00-lf5×l,
=lf500-lf5,
=lff65;
(f)20f-lf5÷5,
=20f-2f,
=lf6;
(4)9f-l2×6+4f,
=9f-f2+4f,
=25+4f,
=68;
(5)49×99+49,
=49×(99+l),
=49×l00,
=4900;
(6)5620÷(562×5),
=5620÷562÷5,
=l0÷5,
=2;
(f)ff+l25+6f+lf5,
=(ff+6f)+(l25+lf5),
=l00+f00,
=400;
(8)lf5+25÷25+l5,
=lf5+l+l5,
=lf6+l5,
=l9l;
(9)l25×f2×25,
=l25×(4×8)×25,
=(l25×8)×(4×25),
=l000×l00,
=l00000;
(l0)l56×l0l-l56,
=l56×(l00-l),
=l56×l00,
=l5600.
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