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? Third grade last semester comprehensive examination questions
Calculation:
1, oral estimation:
900÷30 12×40 480÷80 16×6 12×7
420÷60 100×26 2400+300 5600÷70 320+780
90÷ 18 16×25 480+30 300-25×4 100-72÷8
689×5≈ 5430÷9≈ 3976÷8≈ 2080×4≈ 260×8≈
2, vertical calculation and checking calculation:
209×43 8652÷36
3. Off-mold calculation:
2 10+405÷9× 12 4020÷20- 18× 1 1
4, column calculation:
What's the difference between 345 minus 345 and 5? What is the sum of the quotients of 882 divided by 2 1 and 18?
Basic knowledge:
I. Fill in the blanks:
1, given the time and work efficiency, the relationship between the total work is: ().
2. The sum of the largest two digits and the smallest two digits is (), and the difference is ().
3. In □24÷35, if the quotient is two digits, the minimum value in □ should be filled in ().
4. Fill in the appropriate numbers:
12m = () decimeter 9 tons = () kg 1800 square decimeter = () square meter.
5, the dividend is expanded by 2 times, the divisor is unchanged, and the quotient ().
6. The rectangle is 60 meters long, 50 meters wide and has a circumference of ().
7. When a two-digit number is divided by three digits, the quotient is two digits, which means that the first two digits of the dividend are greater than the divisor ().
8. Fill in the appropriate unit name:
A pencil is 18 (), a desk is 7 () and a big tree is 15 ().
The length of the classroom is 9 () 90m = () decimeter = () cm.
9. The multiple of a number 19 is 36 1, and this number is ().
10,9275 Write the mantissa after omitting the highest digit ().
1 1. The rectangle has an area of 42 square decimeters, a width of 6 decimeters and a length of () decimeters.
12. To request the speed of a car, you must know two conditions () and (), and their relationship is ().
13 and () What can I fill in?
14×( )