四年级数学两位数乘三位数口算题
(1) 624 × 17 = (2) 15 × 914 = (3) 422 × 74 =
(4) 894 × 45 = (5) 103 × 80 = (6) 445 × 32 =
(7) 49 × 958 = (8) 212 × 25 = (9) 21 × 498 =
(10) 80 × 857 = (11) 980 × 69 = (12) 371 × 16 =
(13) 70 × 569 = (14) 53 × 223 = (15) 36 × 499 =
(16) 516 × 47 = (17) 37 × 438 = (18) 840 × 78 =
(19) 918 × 62 = (20) 946 × 80 =