1 乘法简便运算专项练习 班别: 姓名: 分数: (712 - 15 )×60 (1 83 + 89 )×18 ( 56 - 59 )×185 (22 0 + 15 )× 5 (89 + 42 7 )×27 6 ×(21 8 + 73 0 ) (2 41 5 - 38 )× 61 5 16 ×(96 +23 ) (35 +2 52 )× 2 5 (92 4 + 83 )× 12 4 (2 07 - 15 )×20 ( 56 - 59 )×18 2 1 2 ×( 72 4 + 56 + 34 ) 41 7 ×(34 + 21 7 ) (15 + 37 )×3 5 47 × 613 +37 × 613 56 ×59 + 59 × 16 34 ×53 + 34 × 25 2 72 2 ×34 + 52 7 × 34 61 3 ×75 - 61 3 × 25 71 2 ×6 + 51 2 × 6 47 × 613 + 37 × 613 833×1 17 +1 14 ×833 0
9 2 ×1
4 1 +0
9 2 ×8
5 9 3 51 6 ×1 37 -53 ×1 37 1
3 ×1 1
3 59 ×1 1
6 +1 8
4 ×59 57× 38+ 58× 57 23×7+ 23×5 21×73 +74 ×21 1 0 06 3 ×101 67 7 × 78 52 7 ×2 8 36×3435 2 1 × 32 0 3 7 × 33 5 62 5 × 24 34×3435 61 3 ×1 2 52 7 ×2 6 2931 × 30 2728 × 27 4 445 ×10 2538 ×8 345 ×2
5 (15 + 37 )×7 ×5 ( 712 - 15 )×5 × 12 ( 56 - 59 )×6×18 ( 47 + 89 )×7×9