六年级上册数学分数乘法的简便计算练习题(人教版)1、直接写得数。0= = 12= = 45 = 13 14 25 56 16 35 35 = 0 = 9 =411 114 813 718 = 100= 18 = 3 5=23 910 425 16 1571 = = = 310 1112 29 712 3142、计算下面各题,能简算的要简算. 3 5 4 23 15 47 35 25 34( + ) 5 ( + )27 6 ( ) 220 15 89 427 218 730( ) (7 ) + 38 38 615 16 23 56 59 59 16 + 6 629 34 527 34 613 75 613 25 712 51221 37 24320 335 625( + 7 ) 25 + 35 34 12 34 25 57 49 571 + (5 ) 514 2125 12 64 46 16 2312( + + ) (125 34) ( + )7 5724 56 34 417 15 37 199 (24 + ) 781920 1920 83 124 677 + 0.42525 210 910 110