1 2 3 4 分数乘法计算练习题 一、分数与整数相乘
512 ×4= 26× 613 = 1115 ×5= 24×1348 = 221 ×7= 310 ×20= 425 ×15= 718 ×12= 16× 920 = 17×1351 = 1415 ×30= 1011 ×121= 1627 ×54= 11× 922 = 1415 ×20= 1819 ×38= 36× 527 = 100×2425 = 二、分数和分数相乘
(注意:能约分的先约分,再计算
) 25 ×34 = 67 ×78 = 59 × 815 = 911 × 715 = 1225 ×1516 = 45 × 910 = 23 ×1516 = 78 × 521 = 49 ×2716 = 1415 ×2521 = 2027 ×38 = 79 ×1835 = 611 ×2215 = 1727 ×4568 = 1933 ×1138 = 817 ×1720 = 1321 × 726 = 89 ×2740 = 1319 ×3839 = 910 ×5063 = 1234 ×1736 = 5 三、分数乘、加、减混合
716 ×(5063 -27 ) 45 ×1516 ×14 56 ×34 +1 23 + 512 × 415 914 -59 ×2735 1 -1819 ×3845 615 ×(5 - 513 ) 1991 ×7 + 813 四、分数乘、加、减简便运算
1315 × 726 ×5 (58 +1112 )×24 914 ×1718 ×14 (56 -49 )×36 9 9 × 9798 913 - 718 × 913 67 ×12× 712 815 ×47 × 316 911 ×97×119 38 × 712 + 512 ×38 517 ×79 +79 × 417 1225 ×15- 725 ×15 6 分数乘