分数乘除法简便运算100题有答案.docx

1、分数乘除法简便运算100题有答案分数乘除法简便运算 100题（有答案）(1) (8 +27)X 3 X 91 2(3)6 X(7 - 3)2 3 5 3(5)9 X4 +27 X 475(7)X126 -12X 63(9)37 X35(11)1531033X+X-2142144336(2)(8 -3 )X15(4)55 51-X+X -69 966762(6)X- - X -135135334 33(8)二-+ X- +X-丿887 876(10) 25 X24(12)7 X 101-1_X 99 +18_ 9X8_ 9-8_ 9X8_ 93)1(15) ( 4 + 9)X 7 X 9 (16

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