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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 = | 
