文档介绍：三年级数学下册口算练****题(一)
(120题)
(1)27 + 46 =
(2)90 + 47 =
(3)18 + 15 =
(4)92 + 65 =
(5)18 + 53 =
(6)29 + 32 =
(7)14 + 56 =
(8)72 + 76 =
(9)71 + 68 =
(10)39 + 79 =
(11)64 + 60 =
(12)38 + 69 =
(13)83 + 62 =
(14)12 + 98 =
(15)17 + 84 =
(1)175 + 157 =
(2)645 + 239 =
(3)808 + 213 =
(4)256 + 775 =
(5)607 + 914 =
(6)352 + 708 =
(7)766 + 792 =
(8)970 + 602 =
(9)343 + 801 =
(10)916 + 861 =
(11)806 + 487 =
(12)691 + 400 =
(13)106 + 537 =
(14)353 + 939 =
(15)328 + 114 =
(1)810 - 125 =
(2)648 - 585 =
(3)398 - 148 =
(4)716 - 117 =
(5)704 - 124 =
(6)449 - 312 =
(7)713 - 288 =
(8)202 - 155 =
(9)954 - 286 =
(10)802 - 668 =
(11)860 - 162 =
(12)287 - 167 =
(13)859 - 371 =
(14)941 - 343 =
(15)472 - 425 =
(1)900 - 168 =
(2)300 - 186 =
(3)900 - 554 =
(4)800 - 200 =
(5)700 - 666 =
(6)300 - 122 =
(7)900 - 353 =
(8)500 - 162 =
(9)900 - 705 =
(10)400 - 133 =
(11)200 - 158 =
(12)300 - 257 =
(13)400 - 157 =
(14)700 - 205 =
(15)300 - 288 =
(1)70 × 5 =
(2)50 × 9 =
(3)10 × 8 =
(4)7 × 30 =
(5)2 × 90 =
(6)70 × 8 =
(7)6 × 20 =
(8)9 × 70 =
(9)2 × 90 =
(10)20 × 1 =
(11)8 × 80 =
(12)60 × 3 =
(13)50 × 4 =
(14)90 × 7 =
(15)6 × 20 =
(1)5 × 10 =
(2)30 × 6 =
(3)70 × 4 =
(4)7 × 80 =
(5)40 × 8 =
(6)4 × 80 =
(7)90 × 4 =
(8)10 × 6 =
(9)90 × 4 =
(10)60 × 9 =
(11)90 × 1 =
(12)3 × 60 =
(13)1 × 50 =
(14)8 × 60 =
(15)2 × 30 =
(1)5 × 24 =
(2)7 ×