The first 1, subtract 25 from 10000 continuously. How many times is the difference? 2. In the division formula without remainder, the dividend (non-zero) is added to the product of the divisor and quotient, and the sum is divided by the dividend. What is the quotient?
3. Mingming is divided by the same number as Huahua quilt, Mingming is divided by 12 and Huahua quilt is divided by 15. Obviously, the divisor is 32 and the remainder is 6. What should be the result of flower calculation?
4. There are 24 birds in three trees. If four birds fly from the first tree to the second tree, and then five birds fly from the second tree to the third tree, then the number of birds on the three trees is equal. How many birds are there on the second tree?
5, two bags of sugar, one bag is 84, the other bag is 20, each time take out 8 pieces of sugar from the more bag and put them in the less bag, and take them several times to make the two bags of sugar have the same number of grains.
6. Among Xiao Qiang, Xiaoqing, Xiaoling and Xiaohong, Xiao Qiang is not the shortest, Xiaohong is not, but she is taller than Xiao Qiang, and Xiaoling is not taller than others. Please write down your names in order from highest to lowest.
7. There are 65,438+00 different locks, which are used to open 65,438+00 locks, and 65,438+00 keys are mixed together. How many times do you have to try at most to match all 65,438+00 locks and keys?
8. How many two-digit numbers are there * * * The numbers on each number are different, and they are composed of five numbers: 0, 6, 7, 8 and 9?
Five students took part in the table tennis competition. Every two people have to play a game. How many rounds does a * * * have to play?
10, two knives are equal to three notebooks, three notebooks are equal to six pencils, and one knife is 1.8. How much is a pencil?
1 1. The tree planting team has three groups, each group has 14 people, and it is necessary to plant 1554 trees. How many trees are planted per person on average?
12. The school buys prizes for outstanding athletes. I bought 6 boxes of pens, each box 10. The price of each pen is 5 yuan. How much is a * * *?
13. A factory processed 729 machine parts in 9 days. According to this calculation, how many days does it take to process 9639 machine parts?
14, students do broadcasting exercises, and there are 20 people in each row, which is exactly 6 rows. /kloc-how many rows can 0/2 people stand in each row?
15, 9 trucks of cement were delivered from the construction site, with an average of 30 bags per truck, and each bag of cement weighed 50 kilograms. How many kilograms does this cement weigh?
extreme
1. Teacher Wang took 8000 yuan, spent 6387 yuan on a computer and 986 yuan on a printer. How much is left? 2. Students in Grade Three and Grade Four collected 65 kilograms of tree species, while students in Grade Three collected 6 bags of 5 kilograms each. How many Jin did psychology in the fourth grade receive?
3. The TV factory produced 274 TV sets in the morning and 196 TV sets in the afternoon. If 5 10 TV sets were produced on the third day, how many TV sets were produced on the first day compared with the second day?
Last month, the furniture factory produced 65,438+0,500 single beds, 65,438+0,850 double beds and 2,500 iron beds. How much does the iron bed produce less than the wooden bed?
The handkerchief factory originally planned to produce 3280 dozen handkerchiefs in August. After adopting the new production line, 2,960 dozen handkerchiefs were transported away, leaving 875 dozen. How many dozen more than originally planned?
6. Young Pioneers mow the grass. The first team mowed 46 kilograms, the second team mowed 54 kilograms, and the third team mowed 39 kilograms less than the sum of the first team and the second team. How many kilograms did the third team cut?
7. The first chicken farm has 2670 chickens, and the second chicken farm has 980 fewer chickens than the first chicken farm. How many chickens are there in two chicken farms?
8. The canteen burns 300 kg of coal in September, saving 40 kg of coal in1October compared with September. How many kilograms of coal are burned in two months?
9. The Children's Wear Factory planned to produce 2060 sets of children's wear in September, and as a result, it produced 1208 sets in the first half of the year and 1395 sets in the second half of the year. How many sets exceeded the plan?
10. The washing machine factory produced 845 washing machines in the first half of September, 968 in the second half, and 1560 in August. How many more units were produced in September than in August? How many units are produced in two months?
1 1. There are 600 exercise books in the stationery store. I sold some, and there are four packs of 25 copies each. How many copies have you sold?
12, grade three students planted 80 trees, and grade four and five planted twice as many trees as grade three. 14 trees. How many trees were planted in the third grade?
13. There are 808 students in the school. They went for a spring outing in six cars. The first bus has already picked up 128 people. If the other five cars have the same number of people, how many students are in the last car?
14. Interest groups were organized in the school. The number of chorus is three times that of instrumental band, and the number of dance team is 8 less than that of instrumental band, and the number of dance team is 24. How many people are there in the choir?
15. When Xiao Qiang calculates the division, he writes the divisor 76 as 67, and the quotient obtained is 15 plus 5. What should be the correct quotient?
Tisso
1, a bookshelf has three layers of books, * * * has 270 books, 20 books are taken out from the first layer and put on the second layer, and 17 books are taken out from the third layer and put on the second layer. At this time, the number of books on the three shelves is equal. How many books are there on each floor? There are the same number of pencil boxes in the box. If 60 pencil boxes are taken out of each box, the sum of the remaining pencil boxes in the five boxes is equal to the sum of the original two boxes. How many pencil boxes are there in each box?
3. Among the students who participated in the fourth-grade mathematics competition, the number of boys winning prizes was 2 more than that of girls, and the number of girls winning prizes was 2 more than that of boys. How many boys and girls each won the prize?
Two pieces of cloth with the same length, the first piece is 32 meters, and the second piece is 20 meters. As a result, the number of meters left in the second block is three times that of the first block. How long are these two pieces of cloth?
A square is divided into five equal rectangles. The circumference of each rectangle is 60 cm. What is the circumference of this square in centimeters?
6. It takes 18 hours to get from A to B by train, but it takes less than 15 hours by plane, and the speed of the plane is 735 kilometers per hour. How many kilometers is it between A and B?
7. The apprentice processes 38 parts per hour, and the master processes 20 parts, which is twice that of the apprentice. How many parts does the main module process per hour?
8. The store shipped 10 bales of wool, 25 kg each, and sold them at 10000 yuan. How much is the average per kilogram of wool?
9. A factory processes 7245 machine parts in 9 days. According to this calculation, how many days does it take to process 9660 machine parts?
10, each basket of apples weighs 45 kg, and each basket of oranges weighs 50 kg. A fruit shop delivered 25 baskets of apples and oranges. How many kilograms are apples less than oranges? (two solutions)
1 1. A passenger plane flies from city A to city B at 10: 30 in the morning and arrives at city B at 2: 30 in the afternoon. It is known that the distance between AB and two cities is 3960 kilometers. How many kilometers does this passenger plane fly per hour on average?
12. The grain depot uses three pickup trucks to transport flour, each with 95 bags and 25 kilograms. How many kilograms of flour does this grain depot transport? (Solve in two ways)
13, 8 pandas ate 120 kg of corn in 5 days. How many kilograms of corn does each panda eat on average every day?
14, pencils are 7 points more expensive than erasers, and ballpoint pens can buy 1 1 pencil. It is known that an eraser is 8 cents. How much is a ballpoint pen?
15, a mill grinds 750 kilograms of flour in 6 hours. According to this calculation, how many hours does it take to grind 3000 grams of flour?