Hand copied newspaper for fifth grade mathematics, hand copied newspaper for fifth grade mathematics

Summary. Hand-copied newspaper from the first volume of the fifth grade of mathematics.

Hello, that's it.

Mathematics is a tool of knowledge and a source of other knowledge tools. All the sciences that study the order and measurement are related to mathematics. Here's what I brought to you, I hope you enjoy it.

1: Example questions and analysis The school bought 54 boxes of chalk, used 34 boxes, how many boxes are left? 2 The school bought 30 boxes of white chalk and 24 boxes of colored chalk, 34 boxes were used, how many boxes are left?

Answer: The first question, there are 54-34 = 20 boxes left The second question: First of all, the total number of chalk in the school is 30 + 24 = 54 boxes, and there are 54-34 = 20 boxes left.

A total of 94 cans were collected, of which 34 were collected in the first group and 29 in the second group. How many cans did the third group collect?

A: The number collected by the third group is 94-34-29=31.

Each peach is divided equally among 7 monkeys, how many are there for each monkey?

Answer: The number of each little monkey is 56 7 = 8.

4. Dad, Mom and I broke 9 pieces of corn each, and my little brother broke 6 pieces. Q: How many corns did our family break?

Answer: The total amount of corn broken by the whole family is 9 + 9 + 9 + 6 = 33.

5. There are 42 students in the first class of the second grade, 38 in the second class and 39 in the third class. How many students are in Year 2 Class 1 and Year 2 Class 2? How many students are there in the third class of the second grade compared to the first class of the second grade?

Answer: There are 42 + 38 = 80 students in the first class of the second grade and the second class of the second grade, and the third class of the second grade is 42-39 = 3 fewer students than the first class of the second grade.

Figure 1 Figure 2.

Figure 3 2: Multi-digit nursery rhymesMulti-digit reading of the song

The reading should start from the high position, which digit is the number to read;

If there is a zero at the end of each level, you don't have to read it out in mind;

The other digits are continuous zeros, and only one is read carefully;

Add reading at the end of level 10,000"Ten thousand", read at the end of 100 million"billion"The rules of reading are always kept in mind.

Multi-digit writing songs

Write the number from the high position, and write a few digits.

Which one has no unit on it, use"0"The top position to keep in mind.

Fifth, the multi-digit size comparison song.

The number of digits is different than the size, the number of bits is large, and the number of bits is small.

The number of digits is the same as the size, and the high digits are known by the ratio.

Multi-digit rewrite songs

10,000 behind"0"Removed, plus 10,000 characters to change it.

100 million bits behind"0"Remove it, add 100 million words and change it.

<><1.The commutative law of addition: the addition of two numbers to exchange the position of the added number, and the sum is invariant. a+b=b+a

2.Associative law of addition: add three numbers, add the first two numbers first, or add the last two numbers first, and then add the third number, and the sum is unchanged. a+b+c=a+(b+c)

3.Multiplicative commutative law: When two numbers are multiplied, the position of the exchange factor and the product remain unchanged. a×b=b×a

4.Multiplicative associative law: multiply three numbers, multiply the first two numbers, or multiply the last two numbers first, and then multiply the third number, and their product remains the same. a×b×c=（a×b)×c

5.Multiplicative distributive law: If two numbers are multiplied by the same number, you can multiply the two additives by this number, and then add the two products, and the result remains the same. For example: (2+4) 5=2 5+4 5

6.Nature of division: In division, the dividend and the divisor expand (or shrink) by the same multiple at the same time, and the quotient does not change. 0 divided by any number that is not 0 gives 0

7.Equation: The equation in which the value to the left of the equal sign is equal to the value to the right of the equal sign is called an equation. The basic property of an equation: both sides of the equation are multiplied (or divided) by an identical number at the same time, and the equation still holds.

8.Equations: Equations with unknowns are called equations.

9.Unary Equation: An equation that contains an unknown number and the number of unknowns is one-time, is called a unary equation. n yuan - n unknowns; m times - the highest power of an unknown number.

10.Fraction: The unit "1" is divided into several equal parts, and the number of such a part or fraction is called a fraction. 11.Addition, subtraction, multiplication and division of fractions:

Fractions with the same denominator are added and subtracted, and only the numerator is added and subtracted, and the denominator remains the same.

Fractions with different denominators are added and subtracted, first through the fractions, and then added or subtracted.

Multiplication of fractions: use the product of the numerator as the numerator and the product of the denominator as the denominator.

The division of fractions: dividing by a number is equal to multiplying by the reciprocal of that number.

12.Comparison of fraction size: Comparison of fractions with the same denominator, the large numerator is large, and the small numerator is small. Scores with different denominators are compared, first through the scores and then compared; If the numerator is the same, the larger denominator is smaller.

13.Multiply the fraction by an integer, and use the numerator of the fraction and the product of the integer multiplied as the numerator, and the denominator remains unchanged.

14.Multiply fractions by fractions, use the product of the multiplication of the numerators as the numerator, and the product of the multiplication of the denominator as the denominator.

15.The fraction divided by the whole number (except 0) is equal to the fraction multiplied by the reciprocal of this integer.

16.True Fraction: The fraction whose numerator is lower than the denominator is called the true fraction.

17.False fractions: Fractions whose numerator is greater than the denominator or whose numerator and denominator are equal are called false fractions. False score greater than or equal to 1

18.With fractions: Writing false fractions as integers and true fractions is called band fractions.

19.The basic property of fractions: the numerator and denominator of fractions are multiplied or divided by the same number at the same time (except 0), and the magnitude of the fraction does not change.

20.A number divided by a fraction is equal to the number multiplied by the reciprocal of the fraction.

21.The number A divided by the number B (except 0) is equal to the reciprocal of the number A multiplied by the number B.

Are you still bothered about doing math hand-copied newspapers? Don't know what to write, don't know what to draw? So, here is what I bring to you, I hope you enjoy it.

Mathematics commonly used unit conversions.

Length unit conversion.

1 km = 1000 m 1 m = 10 dm 1 dm = 10 cm 1 m = 100 cm 1 cm = 10 mm.

Area Unit Conversion.

1 square kilometer = 100 hectares 1 hectare = 10,000 square meters 1 square meter = 100 square decimeters.

1 square decimeter = 100 square centimeters 1 square centimeter = 100 square millimeters.

Volume *** volume unit conversion.

1 cubic meter = 1000 cubic decimeters 1 cubic decimeter = 1000 cubic centimeters 1 cubic decimeter = 1 liter.

1 cubic centimeter = 1 milliliter 1 cubic meter = 1000 liters.

Weight unit conversion.

1 ton=1000 kg 1kg=1000g 1kg=1 kg.

RMB unit conversion.

1 yuan = 10 jiao 1 jiao = 10 points 1 yuan = 100 points.

In the fifth grade, the math hand-copied newspaper was illustrated by hand.

Grade 5 math hand-copied newspaper Figure 2.

In the fifth grade, mathematics hand-copied the newspaper picture three.

Grade 5 Fun Math Olympiad.

1. His first job.

Hi! Johannes," called out to Joe on Sunday when he met a young man on the street, "long time no see, I heard you're getting to work!" ”

It's been a couple of weeks," said Johannes, "it's a piecework job, and it's going to be pretty good." I got more than forty dollars in the first week, and every week after that I made 99 cents more than the week before. ”

What a coincidence! Joe smiled and continued, "May you continue to do the same!" ”

I estimate it won't be long before I make $60 a week," the young man told Joe, "and I've made a full $407 since I started working." This is not bad! ”

How much did Johannes make in the first week?

2. Will they meet?

Where are you calling from? Bert asked. He was in his office at the corner of Merton and Spreuse Streets, listening to ** while watching the traffic through the window.

At a public telephone booth at the intersection of Dale Street and King Street," came Benn's faint voice, "four blocks south from you, a few blocks east!" ”

Bert got off the clock and shouted, "You start leaving now, we'll meet halfway through!" He slammed down his **. And it was only at this time that he realized that he was hanging up too quickly just now, and he didn't explain clearly how to move each other.

In fact, there are exactly 70 different routes between two intersections, and the choice between them has little to do with distance.

So, how do you understand the meaning of "several" in Benn's words?