四年级数学数学计算

竖式计算(1) 624 × 17 ＝ (2) 15 × 914 ＝ (3) 422 × 74 ＝ (4) 894 × 45 ＝ (5) 103

竖式计算 (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 ＝＝＝＝ (21) 970 ÷97 (22) 456 ÷24 (23) 544 ÷17 (24) 484 ÷44 ＝＝＝＝