Sixth grade math hand copied newspaper, sixth grade math hand copied newspaper

<><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.

<> Common Basic Formulas.

1. The number of copies per copy = the total number of copies per copy = the total number of copies the number of copies = the number of copies multiple = the number of copies multiple = several times of the number of times 1 multiple = the number of times of the number of times = the number of times 3, speed time = distance speed = time distance time = speed 4, unit price quantity = total price unit price = total price unit price = total price quantity = unit price 5, work efficiency working hours = total work hours work efficiency = total working hours working hours working hours = work efficiency.

6. Addition + Addition = Sum - One Addition = Another Addition 7, Subtraction - Subtraction = Difference Subtraction - Difference = Difference + Subtraction = Subtraction 8, Factor Factor = Product One Factor = Another Factor 9, Dividend Divisor = Quotient Dividend Quotient = Divisor Quotient Divisor = Dividend Quotient Divisor = Dividend.

Circumference of the rectangle = (length + width) 2 c = (a+b) 2 circumference of the square = side length 4 c = 4a

The area of the rectangle = length and width s = ab

The area of the square = the length of the side The length of the side =

The area of the triangle = base height 2 s=ah 2

Area of the parallelogram = base height s = ah

Area of the trapezoid=(top + bottom) Height 2 s=(a+b)h 2 Diameter = radius 2 d = 2r radius = diameter 2 r = d 2 circumference of the circle = pi diameter = pi radius 2 c = d = 2 r area of the circle = pi radius radius.

Area of the triangle = base height 2Formula s=a H2 Area of the square = side length The side length formula s=a a

Area of the rectangle = length and width of the formula s=a b

Area of the parallelogram = base height formula s=a h

Area of the trapezoid = (upper bottom + lower bottom) height 2 formula s = (a + b) h 2 sum of internal angles: sum of the internal angles of the triangle = 180 degrees.

The volume of the box = length width height formula: v=abh

Volume of the cuboid (or cube) = base area Height formula: v = abh volume of the cube = edge length edge length edge length formula: v = aaa circumference of the circle = diameter formula: l = d = 2 r

Area of the circle = radius Radius Formula: s= r2

Side area of the cylinder: The side area of the cylinder is equal to the perimeter of the base surface multiplied by the height. Formula: s=ch= dh=2 rh

Surface area of the cylinder: The surface area of the cylinder is equal to the circumference of the base multiplied by the height plus the area of the circle at both ends. Formula: s=ch+2s=ch+2 r2

Volume of the cylinder: The volume of the cylinder is equal to the base area multiplied by the height. Formula: v = sh volume of the cone = 1 3 bottom area height. Formula: v=1 3sh<>

<> "With novelty, fantasy and confusion, we walked into the university, and we were greeted by a half-month military training. We know that military training is not only a training of the stupid stool, but also a test and sharpening of the will.

During the few days of military training, we learned a lot. I remember that one of the most common postures we did in military training was standing. On the plastic basketball court baked by the scorching sun, we stood motionless with our heads raised and our chests held high.

The heat kept pouring up from the ground, the soles of our feet were sore and painful, and beads of sweat the size of beans kept running down our cheeks, and we didn't dare to wipe them, so we insisted on standing. There were several times when I almost couldn't hold on with the Divine Brigade and wanted to "retreat", but I knew that this was exercising our will, so every time I would desperately say to myself in my heart: "Hold on for a while, just hold on for a while, you must hold on."

At the end of the stand-up, I'm always happy because I managed to make it to the end with my perseverance.

Positive steps are the hardest and most tiring of the many poses we learn. The instructor told us to kick in the air and stop, and then go over and check one by one, and if we found anyone wrong, we would immediately correct it. It is not easy to walk neatly, so we have very strict requirements for instructors during training, and every movement must be in place, otherwise it will affect the neatness of the whole team.

So every time we finished the training session, we were soaking wet.

In addition to hard training, there are also many interesting activities in military training. For example, tug-of-war, singing competition, etc. In the tug-of-war, although our class lost, it didn't matter if we won or lost, the process was the key.

Time flowed like water, and half a month of military training became a memory in a blink of an eye. Thinking back on this military training, a feeling that has been hidden in my heart for a long time arises spontaneously. It is true that military training is very hard, but it is hard and rewarding, and the hard work is meaningful and unforgettable.

I will never forget the sweat of our military training, the appearance of the serious instructor and us joking with us during the usual training, and the hard performance of our hard work on the last day of the exercise, everyone is full of energy waiting for the results of sweat, although we did not win the first place in the end, but we are still the winners, because we defeated ourselves!

Military training has been solidified memory, but the resonance left by military training is still echoing, we must keep in mind the style of soldiers, restrain ourselves with iron discipline, and dominate ourselves with steel will. Only by knowing how to do this, can we be worthy of the teachers who accompany us every day, the dedicated training of the instructors, and the sweat of our own efforts!