精品文档 六年级上册数学分数乘法的简便计算练习题 一、分数与整数相乘。 61323 ×15 = 24× = ×7= ×20= 548211056112 ×4= 26× = ×5= ×6 = 12131415 ×30= 1011 ×121= 14 ×8 = 12×516 = 42425 ×15= 718 ×12= 1679 ×7= 1627 ×54= 11二、分数和分数相乘。 25 ×34 = 677 ×8 = 1225 ×1516 = 45 ×910 = 49 ×27142516 = 15 ×21 = 611 ×2215 = 174527 ×68 = 1217334 ×36 = 13 ×2637 = 450×8713 = 9×18 = 三、分数乘、加、减混合。 716 ×(5063 -24157 ) 5 ×16 ×14 . 15914 ×21 = 5×928 = ×920 = 17×922 = 59 ×815 = 23 ×1516 = 2027 ×38 = 1933 ×1138 =× 35 = 23 × 910 = 56 ×34 +1 13×311 = 944 ×11 = ×1351 = 1415 ×20= 911 ×715 = 78 ×521 = 79 ×1835 = 817 ×1720 = 41111 × 4 = 425 ×100= 23 +5412 ×15 精品文档 9527183865198 - × 1- × ×(5- ) ×7+ 14935194515139113 四、分数乘、加、减简便运算。 1315 ×726 ×5 ( 1516 ×2021 ×15 (56 -49 )×36 99 67 ×12×712 38 ×75312 +12 ×8 5356 ×57 1853 ×(3 -6 ) (13+ . 58 +1112 )×24 910 ×23 ×56 × 9798 815 ×47 ×316 517 ×7749 +9 ×17 517 +517 ×16 199 )×13 914 ×1718 ×14 533 ×22×12 913 -718 ×913 911 ×97×119 1225 ×15-725 ×15 231616125 ×17 +25 ×17 6613 ×12+6613 精品文档 214323 × ×3 5× × × 4 × 357554( 336125551( - )× ×(7 - ) × + × 218427 + )× 5 ( + )×27 6 ×( × ) 20592718308815 23539 ×4 +27 × 4 21× 320 37(35 + 7 )× 25 1- 514 × 2125 12×(724 + 536 + 4 ) 191920 × 199 × 20 . 63613 ×7625 - 13 × 5 × 335 34 ×12 + 34 × 25 1642 + 4 × 6 417 ×(125 × 34) (24 + 83 )× 124 6996712 ×6 -512 × 6 625 × 24 57 - 49 × 57 16 ×(5 - 23 ) 15 + 37 )×7 ×5 677 × 78 ( 本文来源:https://www.wddqw.com/doc/adc948a8504de518964bcf84b9d528ea81c72f0c.html