2.9999*3+ 10 1* 1 1*( 10 1-92)
3.(23/4-3/4)*(3*6+2)
4.3/7 × 49/9 - 4/3
5.8/9 × 15/36 + 1/27
6. 12× 5/6 – 2/9 ×3
7.8× 5/4 + 1/4
8.6÷ 3/8 – 3/8 ÷6
9.4/7 × 5/9 + 3/7 × 5/9
10.5/2 -( 3/2 + 4/5 )
1 1.7/8 + ( 1/8 + 1/9 )
12.9 × 5/6 + 5/6
13.3/4 × 8/9 - 1/3
14.7 × 5/49 + 3/ 14
15.6 ×( 1/2 + 2/3 )
16.8 × 4/5 + 8 × 1 1/5
17.3 1 × 5/6 – 5/6
18.9/7 - ( 2/7 – 10/2 1 )
19.5/9 × 18 – 14 × 2/7
20.4/5 × 25/ 16 + 2/3 × 3/4
2 1. 14 × 8/7 – 5/6 × 12/ 15
22. 17/32 – 3/4 × 9/24
23.3 × 2/9 + 1/3
24.5/7 × 3/25 + 3/7
25.3/ 14 ×× 2/3 + 1/6
26. 1/5 × 2/3 + 5/6
27.9/22 + 1/ 1 1 ÷ 1/2
28.5/3 × 1 1/5 + 4/3
29.45 × 2/3 + 1/3 × 15
30.7/ 19 + 12/ 19 × 5/6
3 1. 1/4 + 3/4 ÷ 2/3
32.8/7 × 2 1/ 16 + 1/2
33. 10 1 × 1/5 – 1/5 × 2 1
34.50+ 160÷40
35. 120- 144÷ 18+35
36.347+45×2-4 160÷52
37(58+37)÷(64-9×5)
38.95÷(64-45)
39. 178- 145÷5×6+42
40.8 12-700÷(9+3 1× 1 1)
4 1.85+ 14×( 14+208÷26)
42.77+27÷(99-96)-3
43. 120-36×4÷ 18+35
44.(58+37)÷(64-9×5)
45.(6.8-6.8×0.55)÷8.5
46.0. 12× 4.8÷0. 12×4.8
47.(3.2× 1.5+2.5)÷ 1.6
48.6- 1.6÷4= 5.38+7.85-5.37=
49.7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=
50.6.5×(4.8- 1.2×4)=
5 1.5.8×(3.87-0. 13)+4.2×3.74
52.32.52-(6+9.728÷3.2)×2.5
53.[(7. 1-5.6)×0.9- 1. 15] ÷2.5
54.5.4÷[2.6×(3.7-2.9)+0.62]
55. 12×6÷( 12-7.2)-6
56. 12×6÷7.2-6
57.0.68× 1.9+0.32× 1.9
58.58+370)÷(64-45)
59.420+580-64×2 1÷28
60. 136+6×(65-345÷23)
15- 10.75×0.4-5.7
62. 18. 1+(3-0.299÷0.23)× 1
63.(6.8-6.8×0.55)÷8.5
64.0. 12× 4.8÷0. 12×4.8
65.(3.2× 1.5+2.5)÷ 1.6
66.3.2×6+( 1.5+2.5)÷ 1.6
67.0.68× 1.9+0.32× 1.9
68. 10. 15- 10.75×0.4-5.7
69.5.8×(3.87-0. 13)+4.2×3.74
70.32.52-(6+9.728÷3.2)×2.5
7 1.[(7. 1-5.6)×0.9- 1. 15] ÷2.5
72.5.4÷[2.6×(3.7-2.9)+0.62]
73. 12×6÷( 12-7.2)-6
74. 12×6÷7.2-6
75.33.02-( 148.4-90.85)÷2.5
1) 86+49+ 1 14= 2) 240+(39-40)=
3) 255+(352+ 145+48)= 4) (345+377)+(55+23)=
5) 9+(80+ 19 1)= 6) (268+3 14+ 132)+86=
7) 5 190÷ 15= 8) 495+(278+5)+222=
9) 174×36×25= 10) 399- 199=
1 1) 48+( 164+ 152)+36= 12) 133-(28+29)-43=
13) 1650÷25= 14) 260×8-8-8×59=
15) 996+500= 16) 6975÷25=
17) 196-95= 18) 328-( 163-72)=
19) 199+(84-99)= 20) 885- 1-20 1-298=
2 1) 460-35-3-262= 22) (98+59+2)+4 1=
23) 736× 12- 12- 12×335= 24) 1 16+( 1 12+ 184)=
25) 150×258+ 142× 150= 26) 3 1×24×25=
27) 9000÷25= 28) 502-287-54- 159=
29) 307+(92+93)= 30) 80× 125=
3 1) 102× 15= 32) 30+(63+70)+37=
33) 27+(73+73)+27= 34) 86+(98+ 14+2)=
35) 544-272-28= 36) 18000÷ 150÷4=
37) 103×69= 38) 25×64× 125=
39) 343- 188- 12= 40) 509× 1 1- 1 1- 1 1×8=
4 1) 79×24×25= 42) ( 145+25)+( 155+275)=
43) (447+423)+(53+77)= 44) 46+ 15+54=
45) 589- 109-(6+ 185)= 46) 8× 125=
47) 20×25= 48) 89×245+ 155×89=
49) 92+(79+8+2 1)= 50) 222+ 15+78=
5 1) 96× 125= 52) 30600÷25÷4=
53) 5996+3004= 54) 60 15-(5 18+699)-2783=
55) 4003×2426= 56) 2467×70-70-70×466=
57) 84×25= 58) 400 1-2002=
59) 16 16×506+2494× 16 16= 60) 4× 17+4+ 1982×4=
6 1) 799×660+340×799= 62) 399 1×36×25=
63) 6076-875-(805+3320)= 64) 6056-679-40-428 1=
65) 4 134+(28 19+866)+2 18 1= 66) 5898-(2065- 102)=
67) 3297× 1273+2727×3297= 68) 13 12+( 153+688+ 1847)=
69) 23 15-793- 1 14- 1093= 70) 3940+( 1739- 1940)=
7 1) 1455+( 1768+ 1545)+ 1232= 72) 975+( 1007+2025)=
73) 24× 195 1+24+48×24= 74) 30425÷25=
75) 1376+( 196 1+624+39)= 76) (686+ 1872+23 14)+ 1 128=
77) 2922+(260-922)= 78) 1 13600÷ 100÷4=
79) 2002×658= 80) 1428+(958+2572)=
8 1) 200 1×786= 82) 190×760+ 190+3239× 190=
83) 2976× 1 145+2855×2976= 84) 88×25=
85) 8 122-(3084- 1878)= 86) 879+( 1295+2 12 1)=
87) 3998+200 1= 38) 2595× 178- 178- 178×594=
89) 4467-2024-976= 90) 13 19× 1339+ 166 1× 13 19=
9 1) 997×885= 92) 453×8× 125=
93) 4928-(87 1+ 1928)= 94) 997×9 17=
95) 1526+(938-526)= 96) 803× 12×25=
97) 1 14000÷ 1200= 98) 6933×332-332-332×2932=
99) 16×25= 100) 25×224× 125=
10 1)9/22 + 1/ 1 1 ÷ 1/2
102)5/3 × 1 1/5 + 4/3
103)45 × 2/3 + 1/3 × 15
104) 7/ 19 + 12/ 19 × 5/6
106) 8/7 × 2 1/ 16 + 1/2
107) 10 1 × 1/5 – 1/5 × 2 1
108)50+ 160÷40 (58+370)÷(64-45)
109) 120- 144÷ 18+35
1 10)347+45×2-4 160÷52
1 1 1)(58+37)÷(64-9×5)
1 12)95÷(64-45)
1 13) 178- 145÷5×6+42 420+580-64×2 1÷28
1 14)8 12-700÷(9+3 1× 1 1) ( 136+64)×(65-345÷23)
1 15)85+ 14×( 14+208÷26)
1 16)(284+ 16)×(5 12-8208÷ 18)
1 17) 120-36×4÷ 18+35
1 18)(58+37)÷(64-9×5)
1 19)(6.8-6.8×0.55)÷8.5
120)0. 12× 4.8÷0. 12×4.8
12 1)(3.2× 1.5+2.5)÷ 1.6 (2)3.2×( 1.5+2.5)÷ 1.6
12 1)6- 1.6÷4= 5.38+7.85-5.37=
122)7.2÷0.8- 1.2×5= 6- 1. 19×3-0.43=
123)6.5×(4.8- 1.2×4)= 0.68× 1.9+0.32× 1.9
124) 10. 15- 10.75×0.4-5.7
125)5.8×(3.87-0. 13)+4.2×3.74
126)32.52-(6+9.728÷3.2)×2.5
127)[(7. 1-5.6)×0.9- 1. 15] ÷2.5
128)5.4÷[2.6×(3.7-2.9)+0.62]
129)0.9+0. 1÷0. 1 0.3×0.3×0.3
130)0.5÷0.5÷0.5 0.8-0.8×0.5
13 1)0.8÷0.8×0.5 2.7+2.3÷0.2
132)5.4÷ 1.8- 1.8 1 1.2- 1.93+0.8
133)0.38×2.9+0.38 0.5-0.5×0.5
134)0.8÷0.8×0.5 2.7+2.3÷0.2
135)5.4÷ 1.8-0.8 1 1.2- 1.93+8.07
136) 1- 1÷4 0.65× 102
137)9.87-(5.87+2.9)
138)(0.25+0.45)×0.4
139)(0.36+ 1.29)÷3 0.008+0.992×2.5×40
140)4.84+0.3× 15÷0.2+77.5 0. 15×(3.79- 1.9)+ 1. 1 1×0. 15
14 1)0.05×[30-( 18.4+27.83÷4.6)] (6.8-6.8×0.55)÷8.5
142)0. 12× 4.8÷0. 12×4.8 1.6- 1.6÷4
143)5.38+7.85-5.37 7.2÷0.8- 1.2×5
144)6- 1. 19×3-0.43 6.5×(4.8- 1.2×4)
145)0.68× 1.9+0.32× 1.9 10. 15- 10.75×0.4-5.7
147) 146)5.8×(3.87-0. 13)+4.2×3.74 32.52-(6+9.728÷3.2)×2.5
148)[(7. 1-5.6)×0.9- 1. 15] ÷2.5 5.4÷[2.6×(3.7-2.9)+0.62]
149)5.47+ 12.8 1+3.53+7. 19 0.83× 12.5×8
150) 109+(72+9 1)-93×24× 125
1. Last Monday, five people in a school asked for leave, and the total number of students who arrived at the school was 395, asking for attendance.
2. With the cooperation of Party A and Party B, one job can be completed in 12 days, and the rest will be completed by Party A alone, with cooperation for 4 days and 20 days. How many days will it take for the remaining B to do it alone?
An indoor swimming pool, its length is 25m, which is 25% longer than its width. What is the area of this rectangular swimming pool?
4. The road team will build1200m long roads. On the first day, 3/8 of the full length was repaired, and on the second day, it was more than the full length of 1/4 100 meters. How many meters does this road team build roads in two days?
5. Wang deposited 5000 yuan in the bank, and after two years, he got 5792 yuan in principal and interest, seeking the annual interest rate.
6. The fruit shop received a batch of fruits and sold 25% of the total on the first day, and sold 128kg on the second day, which is exactly 1/5 of the total. * * * How many kilograms did you sell in two days?
7. Uncle Zhang processed a batch of parts, accounting for 3/8 of the total in two days, more than the processed parts 180. How many parts are left unprocessed?
8. The circumference of a square is 32 cm. Draw the biggest circle in this square. What percentage is the area of a square larger than a circle?
9. It takes 8 days for Party A to do a project alone, and 4 days for Party B to complete 2/5 of the whole project. Party A will do it alone first, and then invite Party B to do it together. It took six days to complete the whole project. How many days did you ask B?
10. It takes 5 hours for the master and 4 hours for Li Shifu to process a batch of parts. Two people worked together. When it was finished, Li Shifu made 40 more parts than Master Wang. How many parts are there in this batch?
1 1. The two sisters * * * deposited in 840 yuan, and the money saved by the elder sister accounted for 3/5 of their total deposits. In order to support the disaster area, my sister took out some savings. At this time, her deposit accounts for 5/ 12 of their total deposit. How much money does my sister have now?
12. The fruit wholesale company has 25,000 kilograms of fruit, and it sells 2/5. How many kilograms does it sell?
13. There are11students in grade six, which is equivalent to 3/4 of the number of students in grade five. How many students are there in Grade Five and Grade Six?
14. There are 128 students in Grade 5. The fourth grade is more than the fifth grade 1/4, which is exactly 16% of the total number of students in the school. How many students are there in the school?
15.6 (1) has 50 students, 54% of whom are boys. How many are boys?
16. The number of people who have reached the physical education standard in grade five is 2/9 more than that in grade four, and the actual number is 12 more. How many people have reached the standard of physical education class in Grade Four?
17. The speed of the train is 60 kilometers per hour, and the speed of the car is slower than that of the train 1/5. How many kilometers does this car travel per hour?
18. The construction team built an expressway, the first week was 20% of the total length, the second week was 1/4, and the second week was180m. What is the total length of this highway?
19. Xiaoming bought a three-year treasury bill with his lucky money 1300, with an annual interest rate of 5.85%. How much will he get in three years?
20. There are 48 students in Class 6 (1), of which116 was rated as the top three. How many students were rated as "three good students"?
2 1. A book is 15% off, and the price is 3.4 yuan. What is the original price of this book?
22. Dad has deposited 5,000 yuan in the bank, and how much interest can he get after two years at an annual interest rate of 3.96%?
23. There is a piece of steel, which was cut off by 3/ 10 for the first time and 45% for the second time. Results The steel bar cut for the first time was 2.5 meters shorter than that for the second time. How long was this just now?
24. What is the area of a circular path with a width of 1 meter outside the circular flower bed with a diameter of 8 meters?
25. 5% of the turnover of Mingfeng Food Store 10 is subject to business tax, and the business tax paid is 900 yuan. /kloc-what is the turnover in October?
26. A farm harvested rice, harvesting 1.2 hectares in the morning, and harvesting area in the afternoon was 7/8 of that in the morning. How many hectares were harvested this day?
27. Boys account for 47% of the total number of students in Hongqi Primary School, and girls account for 2 12. How many students are there in the school?
28. Uncle Wang deposited 2500 yuan in the bank. According to the annual interest rate of 3.96%, how much interest can you get after two years?
29. There is a wire, which was cut off by 20% and then connected to 60 meters. The result is 3/5 longer than before. How long is this wire?
30. After the rice was dried in the sun, its weight was reduced by 1/5. Zhang harvested 3520 kilograms of rice. How many kilograms does it have after drying?
3 1. A factory invested 2.755 million yuan to build a staff dormitory, an increase of 3/7 over the planned investment. How much are you going to invest?
32. A pile used 1.2 tons, accounting for exactly 2/9 of this pile of coal. If two-fifths of this pile of coal is used up, how many tons are left?
33. The price of a color TV set is 2384 yuan, which is 8 16 yuan lower than the original price. How much is each set now?
34. The master and the apprentice processed a batch of parts at the same time. Upon completion, the apprentice processed 120 pieces. It is known that it takes 5 hours for the master to process them alone and 8 hours for the apprentice. Ask the apprentice how many parts are processed per hour on average?
35. A school held a Chinese and math competition in the sixth grade. Two-fifths of the students took part in the Chinese contest, three-quarters of the students took part in the math contest, and nine people both took part. How many students are taking part in the competition?
36. Xiaoming deposited 200 yuan pocket money in the bank last September 1 with an annual interest rate of 7.47%. How much interest did Xiao Ming get when he took it out in September this year 1? Xiaoming decided to donate all the principal and interest of the money to the children in the disaster area. How much did he donate?
37. At the 13 Asian Games, China athletes struggled hard and won 129 gold medals. The Korean delegation ranked second with 65 gold medals and the Japanese delegation ranked third with 52 gold medals. How many percent more gold medals did China win than South Korea and Japan combined? (Keep one decimal place before the percent sign).
38. Bus A and Bus B leave from Hangzhou and Tonglu respectively at the same time. Bus A travels 55 kilometers per hour, 2/9 more than bus B. After 3/4 hours, the difference between the two cars is still 25%. How many kilometers is it between Hangzhou and Tonglu?
39. What is the area of the largest triangle on a semicircular steel plate with a diameter of 2 decimeters? What is the area of the triangular plate in this steel plate?
40. There are 200 apple trees in the orchard. (1) There are 1/5 pear trees. How many pear trees are there? (b) Less than pear trees 1/5. How many pear trees are there?
4 1. A pile of coal transported 360 tons for the first time, with 85% left, and transported 1 1/20 of the total amount for the second time. How many tons were shipped for the second time?
42. There are 128 students in Grade Five. The fourth grade is more than the fifth grade 1/4, which is exactly 16% of the total number of students in the school. How many students are there in the school?
43. Two fifths of a bag of cement was used, and the rest was 20 kilograms more than used. How much did this bag of cement weigh?
44. The distance between Party A and Party B is 336 kilometers. A bus and a train leave from Party A and Party B at the same time and travel in opposite directions. It takes four hours for the bus and six hours for the truck. After a few hours, the distance between the two cars is116?
45. In a verbal arithmetic contest, Xiaoming miscalculated five questions at the intersection of 80, seeking the correct rate of Xiaoming's verbal arithmetic.
46. The factory transported a pile of coal, and after using 37.5%, there was still 15 tons left. How many tons is this pile of coal?
47. The planned cost of the school teaching building is10.5 million yuan, and the actual cost is 7.5% more than planned. What is the actual cost?
48. The fruit wholesale company has 25,000 kilograms of fruit and sold 2/5 of it. How many kilograms are left? (Calculation requires two methods)
49. The output value of Xingnong Company last year was 240 million yuan, 20% less than this year. What is the output value this year?
50. The circumference of a circular iron plate is 25 1.2 cm. What is the area of this iron plate in square centimeters? What is the minimum square area for cutting this circular iron plate?
5 1. The outer diameter of Xiaoming's bicycle wheel is 0.6 meters. It takes 95 cycles 1 min. Xiao Ming 12 minutes by bike from home to school. How far is it from Xiaoming's home to school?
But no one answered. It is meaningless for you to do these 300 questions if you have the answer. It is better to exercise yourself.