Text content of the third grade mathematics handwritten newspaper in primary school

# 3 # Introduction Mathematics is a science that studies quantitative relations and spatial forms in the real world. The following is the relevant information of "Content and Text of Math Manuscript for Grade Three in Primary School", hoping to help you.

1. The content of the third grade mathematics handwritten newspaper in primary school, the content of the text 1.

1. Common area units are: (square centimeter), (square decimeter) and (square meter). 2. Understand the meaning of area and the meaning of area unit.

Area: The size of the surface or closed figure of an object is called their area.

1 m2: a square with a side length of 1 m2 and an area of 1 m2.

1 square decimeter: a square with a side length of 1 decimeter and an area of 1 square decimeter.

1 cm 2: a square with a side length of 1 cm and an area of 1 cm 2.

3. Find examples that are close to 1 square centimeter, 1 square decimeter and 1 square meter in life. For example, 1 cm2 (fingernail), 1 cm2 (computer CD or wire socket), 1 m2 (small display board beside the classroom).

4. Distinguish between length units and area units. The unit of length measures the length of a line segment and the unit of area measures the size of a surface.

5, compare the size of the two graphics area, to use (unified) area unit to measure.

Study hard:

(1) The area of a square with a side length of (1cm) is (1cm).

On the other hand, you should be able to talk. A square with an area of 1 cm2 and a side length of 1 cm. )

(2) A square with a side length of (1 decimeter) has an area of (1 square decimeter).

(3) A square with a side length of (1m) has an area of (1m2).

(4) The area of a square with a side length of (1 00m) is (1hectare), that is, (10000m2).

(5) The area of a square with a side length of (1km) is 1km2.

2. The third grade primary school mathematics handwritten newspaper content text content two

Time unit relation: 1. year

The time for the earth to go around the sun is called a year.

Second, the average year.

The average year of 1 is 365 days.

Third, leap year.

Usually, the Gregorian calendar year is a multiple of 4, but the Gregorian calendar year is an integer and must be a multiple of 400 to be considered as a leap year.

Fourth quarter

There are four quarters in a year, January, February and March are the first quarter, April, May and June are the second quarter, July, August and September are the third quarter and October, November and December are the fourth quarter.

May, may

There are 12 months, 1 month, March, May, July, August, 10 month,1February 3 1 day, February, April, June, September,/kloc.

Six to ten days

A month is divided into early days, China-Japan days and late days, with early days from 1 to 10, China-Japan days from1to 20, and late days from 2 1 to the end of the month.

Seven, hours and minutes

1 day (days) =24 hours, 1 hour =60 minutes, 1 minute =60 seconds.

Eight, 24-hour timing method

The timing method from 0: 00 to 24: 00 is called 24: 00. It starts at 0: 00 p.m. 12, then 1 2 … until noon 12, then 13 and 14 p.m. … and then at 24: 00 p.m. (that is, at 0: 00 the next day).

3. The third grade primary school mathematics handwritten newspaper content text content three

Happy Saturday came, and my father and I went to work in the shop. As soon as I arrived at the store, my father got a call from a customer. I wanted to buy a batch of plates and put them on the insulation table. Dad answered the phone and said to me, "Dad tested you today!" " ! The customer wants to buy 4 sets of pots on the heat preservation table. 1 There are 6 sets of pots on the heat preservation table. A * * *, how much do you want? "I think in my mind, 6+6+6 = 24 (a). Dad asked again, "Do you have any other convenient and quick algorithms? "On second thought, I just learned the multiplication formula" 4624 "in the summer vacation, and I soon figured it out, which is the same as the answer to addition. Dad gave me a thumbs-up when he heard the answer. Dad said, "The number of pots in our warehouse is 12. How many boxes do we need to send? " I quickly meditated in my mind that 24- 12- 12=0 is exactly two boxes. I quickly said to my father, "Two boxes will do. "Dad smiled happily and invited me to eat ice cream.

It turns out that mathematics is everywhere in our lives.

4. The third grade primary school mathematics handwritten newspaper content text content four

One Sunday morning, my friends and I went to play basketball. After a while, we were tired of playing and went to the audience to have a rest. Suddenly I thought of a question and couldn't help but say it: "Xiaoming throws 8 balls a minute, Xiaohong throws 6 balls a minute. After they throw together for 8 minutes, Xiaohong improves the hit rate and throws 8 balls a minute. Xiao Ming only throws six balls a minute because of physical exhaustion. How many minutes later, Xiaohong and Xiaoming threw the same number? "

Probably because my friend is too tired to answer such a simple question. He thought for a while, but didn't come up with it. After a long time, he still didn't figure it out. As time went by, he really couldn't think of it, so he had to say shyly, "It can't be done without a draft." I know that even if he has a draft, he may not be able to do it.

I proudly said, "It turns out that Xiao Ming scored two more goals than Xiao Hong, and one scored eight minutes, which is 8×2= 16 (1). Later, Xiaohong scored four more goals than Xiaoming, so how many minutes does it take 16? " 16÷4=4 (minutes), it takes 4 minutes to catch up. "He said," You are amazing! " "I am a genius!" I joked. We all laughed.

Through this incident, I found that mathematics is everywhere in life, in life, study and work. Since then, I like math even more.

5. The third grade primary school mathematics handwritten newspaper content text content five

1, A has 5 sugars, and B has 12 sugars. In every operation, the person with more sugar gives some sugar to the person with less sugar, so that the amount of sugar for the person with less sugar doubles. After such an operation in 2009, what is the sugar number of two people? Answer: (5,12) → (10,7) → (3, 14) → (6,11) → (12,5).

2. Use the seven numbers 1-7 to form three two-digit numbers and a one-digit number, so that the sum of these four numbers is equal to 100. What is the possible number of answers that meet the requirements? What's the smallest two digits?

A: The sum of the digits added is 28, and the sum of the resulting digits is 1, 28- 1=27, which means there are three decimal places, so the sum of one digit and ten digits must be 20 and 8 respectively. 8= 1+2+5= 1+3+4, so the number may be 57, and the smallest number may be 12.