求200道有理数混合运算的计算题，要带乘方的，急！
推荐回答（3个）
1. 2100-21×53+2255
2. (103-336÷21)×15
3. 800-(2000-9600÷8)
4. 40×48-(1472+328)÷5
5. (488+344)÷(202-194)
6. 2940÷28+136×7
7. 605×(500-494)-1898
8. (2886+6618)÷(400-346)
9. 9125-(182+35×22)
10. (154-76)×(38+49)
11. 3800-136×9-798
12. (104+246)×(98÷7)
13. 918÷9×(108-99)
14. (8645+40×40)÷5
15. (2944+864)÷(113-79)
16. 8080-1877+1881÷3
17. (5011-43×85)+3397
18. 2300-1122÷(21-15)
19. 816÷(4526-251×18)
20. (7353+927)÷(801-792)
21. (28+172)÷(24+16)
22. 6240÷48+63×48
23. 950-28×6+666
24. 86×(35+117÷9)
25. 2500+(360-160÷4)
26. 16×4＋6×3
27.39÷3＋48÷6
28.24×4－42÷3
29.7×6-12×3
30.56÷4＋72÷8
应用题：
1、妈妈买回3千克菜花，她付出5元，找回了0.5元，每千克菜花多少元？
2、五一班图书有故事书50本，是艺术类书的2倍还多4本，艺术类的书有多少本？
3、一块三角形地，面积是280平方米，底是80米，高是多少米？
4、一块梯形的面积是450平方米，高30米，上底是15米，下底是多少米？
5、山坡上有羊80只，其中白羊是黑羊的4倍，山坡上黑羊、白羊各多少只？
6、商店里卖出两筐柑橘，第一筐重26千克，第二筐重29千克，第二筐比第一筐多卖了9元钱，平均每千克柑橘多少元？
7、一块梯形麦田，面积是540平方米，高18米，上底是20米，下底是多少米？
8、甲乙两车从相距750千米的两地同时开出，相向而行，5小时相遇，甲车每小时行80千米，乙车每小时行多少千米？
9、两辆汽车同时从同地开出，行驶4.5小时后，甲车落在乙车的后面13.5千米，已知甲车每小时行35千米，乙车每小时行多少千米？
10、加工一批零件，甲乙合作5小时完成，甲独做9形式完成。已知甲每小时比乙多加工2个零件，这批零件共有多少个？
11、体育场买来16个篮球和12个足球，共付出760元。已知篮球与足球的单价比是5：6，体育场买篮球和足球各付出多少元
12、某商店购进一批皮凉鞋，每双售出价比购进价多15%。如果全部卖出，则可获利120元；如果只卖80双，则差64元才够成本。皮凉鞋的购进价每双多少元？
13、张师傅要利用两张铁皮（见下图）做一个圆柱体，选用其中一张剪出两个底面，然后用另一张做侧面。要求做成的圆柱的体积尽可能大，那么张师傅做成的这个圆柱体的表面积是多少？体积是多少？（不考虑接缝，π取⒊14）
14、甲从东城走向西城，每时走5千米，乙从西城走向东城，每时走4千米，如果乙比甲早1时出发，那么 两人恰好在两城中间地方相遇，问东西两城的距离是多少千米？
15、某经营公司有两个仓库储存彩电，甲乙两仓库储存之比为7∶3，如果从甲仓库调出30台到乙仓库，那 么甲、乙两仓库之比为3∶2，问这两个仓库原来储存电视机共多少台？
16、一列快车由甲城开到乙城需要10时， 一列慢车从乙城开到甲城需要15时，两车同时从两城相对开出 ，相遇时快车比慢车多行120 千米，两城相距多少千米？
17、拖拉机5台24天耕地12000亩，问18天耕完54000亩，需增加拖拉机多少台？
18、一块边长84米的正方形蕉园，蕉树的株距是2米，行距是8米，如果每棵蕉 树收蕉果65千克，每千克0.45元，这个蕉园一年可收入多少元？
19、东风牌货车的运输率是拖拉机的2.5倍，大型集装车的运输率是东风牌货车
的3倍，现有一堆货物，用东风车运，要6小时，如果改用拖拉机运一半，
再用大型集装车运另一半，一共要用多少小时？
20、甲乙两人卖鸡蛋，甲的鸡蛋比乙多10个，可是全部卖出后的收入都是15元，如果甲的鸡蛋按乙的价格出售可卖18元，那么甲、乙各有多少个鸡蛋？
1. 2100-21×53+2255
2. (103-336÷21)×15
3. 800-(2000-9600÷8)
4. 40×48-(1472+328)÷5
5. (488+344)÷(202-194)
6. 2940÷28+136×7
7. 605×(500-494)-1898
8. (2886+6618)÷(400-346)
9. 9125-(182+35×22)
10. (154-76)×(38+49)
11. 3800-136×9-798
12. (104+246)×(98÷7)
13. 918÷9×(108-99)
14. (8645+40×40)÷5
15. (2944+864)÷(113-79)
16. 8080-1877+1881÷3
17. (5011-43×85)+3397
18. 2300-1122÷(21-15)
19. 816÷(4526-251×18)
20. (7353+927)÷(801-792)
21. (28+172)÷(24+16)
22. 6240÷48+63×48
23. 950-28×6+666
24. 86×(35+117÷9)
25. 2500+(360-160÷4)
26. 16×4＋6×3
27.39÷3＋48÷6
28.24×4－42÷3
29.7×6-12×3
30.56÷4＋72÷8
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