Data of the third grade mathematics handwritten newspaper in primary school
1 During the Spring Festival in Little Tiger, Little Tiger, a professional chicken farmer, stood in the yard and counted the total number of chickens. He decided to stay, except for 1/2, and sent solatium 1/4 to the People's Liberation Army and gifts to the nursing home 1/3. After he sent the chickens away, he heard the chickens crowing in the room, only to know that there were 10 chickens missing. So I counted the chickens inside and outside the room again, and there was nothing wrong, no more, no less, just 1/2 left. Little careless and strange. What's the problem? Do you know how many chickens Xiao Mahu counted in the yard?
2. How many guests came?
One day, Xiao Lin was washing dishes at home. Xiao Qiang saw it and asked, "Why do you wash so many bowls?" "There are guests at home." "How many people came?" Kobayashi said, "I don't know. I only know that each of them uses a rice bowl, two people share a soup bowl, three people share a vegetable bowl, four people share a big wine bowl, and one * * * uses 15 bowl. " Do you know how many guests have come?
The data of the third grade mathematics handwritten newspaper in the second primary school
Unit 1 measurement 1. In daily life, a small number of items can be used as units (millimeters, centimeters, decimeters); Large objects are usually measured in meters; Generally, the unit for measuring long distance is (km), also called (km).
2. There are (10) units in the length of 1 cm, and the length of each unit (equal) is (1) mm. ..
3. 1 The thickness of coins, rulers, magnetic cards, buttons and keys 1 min is about1mm..
4. When calculating the length, you can only add or subtract the same length unit.
Tip: When converting the length unit, change the large unit to the small unit and add 0 at the end of the number (if there are several 0s in the relationship, add several 0s); Changing a small unit to a large unit will remove the zeros at the end of the number (if there are several zeros in the relationship, remove several zeros).
5. The relationship between length units is as follows:
① The propulsion rate is 10.
1 m = 10 decimeter 1 decimeter =10 cm1cm =10 mm.
10 decimeter = 1 m10cm = 1 decimeter10mm = 1 cm.
② Propulsion rate 100.
1 m = 100 cm 1 decimeter = 100 mm
100 cm = 1 m 100 mm = 1 decimeter
③ Propulsion rate 1000.
1 km = 1 000m1km = =1000m
1000m = 1 km1000m = 1 km
When we express the weight of an object, we usually use (mass unit). In life, the weight of lighter items can be measured in grams. According to the quality of general goods, it is usually a unit (kg); The size is heavier. Or the mass of bulk cargo, usually in tons.
Tip: in the conversion of "ton" and "kilogram", converting tons into kilograms means adding three zeros at the end of the number; Converting kilograms into tons is to remove the three zeros at the end of the number.
7. The mass unit rate is 1000. (adjacent)
1 ton = 1 000kg1kg =1000g
1000kg = 1 ton1000g = 1 kg
Unit 2 Addition and subtraction within 10 thousand
1, the minuend is a three-digit continuous abdication subtraction operation step:
① When the columns are vertical, the same numbers must be aligned;
(2) When subtracting, which digit is not reduced enough will be1of the previous digit; If the previous digit is 0, it is 1 of the previous digit.
2, pay attention to the middle 0 when doing the problem, because it is a continuous abdication, so after retiring from 100 10 is 10, you have to retreat from 10/0 and borrow 10, so
3. formula.
Sum = Addendum+Another Addendum
Appendix = Sum-Another Addendum
Negative = negative+difference
Subtraction = minuend-difference
Difference = minuend-minuend
Data of the third grade mathematics handwritten newspaper in the third primary school
Fill in the blanks. 1, fill in the appropriate units.
(1) The train goes from Beijing to Shanghai 1462 ().
(2) It takes about 30 () to finish homework every day.
(3) The load capacity of large trucks is 6 ().
(4) A notebook is about 4 () thick.
(5) It took 4 () minutes to take a deep breath.
2, a class of 40 minutes, break 10 minutes, plus () minutes, is 1 hour.
3, four times the two-digit number is (); The number 36 less than 196 is ().
4. A parallelogram has () sides and () angles. There is ().
5. Fill in ""or "=" in ().
120 minutes () 2 hours
48 cm (5 decimeters)
1600kg () 2g
4.3 km 50 m () 3500 m
6. Aunt Wang wants to put 60 pots of Phalaenopsis, 8 pots in each row, you can put () rows, and the remaining () pots.
7. Square. The circumference is 36 cm and the side length is ().
Second, choose one.
1, ÷ 7 = 8 ... and the remainder is ().
Answer, 5
b、9
c、6
2. The four children talked to each other on the phone and called () times.
A, 6
b、4
c、 12
3, a number multiplied by two digits, the product is ().
One or two digits
B, three digits
C, two digits or three digits?
4. use 3. 8。 0 can form () different three digits.
Answer, 4
b、6
c、5
Third, I will be sentenced.
1, two rectangles with equal perimeters. Its length and width are equal respectively. ()
The product of 2.250×8 has 1 zeros at the end. ()
3. Because of 6>5,1/6 >; 1/5。 ()
It will be cloudy, and it will rain in half an hour. ()
Fourth, the calculation problem.
1, oral calculation.
10×8= 23×0= 1 10×6= 86-36= 1500-800=
2. Column vertical calculation.
602+596 906- 153 456+ 154 607×3 52÷9 24÷7
Fifth, solve the problem.
34 people from 1 class and class 3 (1) are going for an outing. Each bus is allowed to take 9 people. How many such buses should we rent?
On Sunday, Xiaohong and her mother went to grandma's house by bus. The bus traveled for four hours at a speed of 56 kilometers per hour. How far is grandma's house?
3. Yucai Primary School organizes students to watch movies with 800 seats. Are there enough seats on the electric bus?
425 boys and 320 girls.
The Zhang family has a rectangular plate, 6 meters long and 3 meters wide, surrounded by a fence. How long is the fence? If one side is against the wall, how many meters should the fence be at least?