In the 6th grade final exam, there was a question I didn t understand about math 2013.

1 5/6 plus one-third and divide by three-quarters, 5/6 is unit 1, unknown, use division, because three-fourths of this number is not enough five-sixths, use addition 2 18 divided by [1 plus 1/5] 10 times [1 minus three-fifths] Like a similar problem, first look for unit 1, unit 1 is in front of the ratio or unit 1 is known, use multiplication, if unknown, use division. Next, add more and subtract less, and add more. Use less to subtract.

I'll go straight to your third question, the third one will be, and the first two will be.

For example, I have 1 finger more than you and you have 10 fingers, so how many fingers do I have?

The answer is your 10 plus I have 1 more than you, and I've got 11.

In the same way, for example, 18 tons is one-fifth more than ( ), which means that this number plus one-fifth less than 18 is 18, so the answer is 18 minus one-fifth, if I have a problem that you don't understand, please ask and be happy to answer for you.

1/2x=5/6

x=5/6*2

x=5 3 is 1 5 more than 18 of his own18 (1+1 5)) is less than 10t of his own 3 5;10*（1-3/5））

In order to question what is more (less) than what, the key is to grasp the unit 1 such as: ( Tons are less than 10 tons and five molecules are three.

Here it is 10 tons in units 1, and less than three-fifths can be regarded as two-fifths of unit one.

So 10*(1-three-fifths) = 4(t).

You can't pass the test, huh? I'm a.

Three-quarters x two-thirds = six-fifths.

Solve the equations yourself.

Four-fifths x = 18

Solve the equations yourself. Hope.

Two thirds.

The general score is preceded by unit 1

1.This problem can be solved by an equation, let this number x be the equation that can be listed according to the meaning of the problem: (3 4) x = (5 6) - (1 3) solve the equation x = 2 3

Tons 4 tons. 3.It is enough to use the plurality as the reference object and the denominator to understand it.

1. Because three-quarters of this number is one-third less than five-sixths.

1. So you can first find out that three-quarters of this number = 5 6-1 3 = 1 2 then 1 2 = a quarter of this number.

3. Use 1 2 3 4 = 2 3 The full formula is (5 6-1 3) 3 4 = 2 3 2, find eighteen tons more than one-fifth can use eighteen tons can use eighteen tons can use eighteen tons +1 5 18 = tons less than three-fifths less than ten tons, use 10-10 3 5 = 4 tons.

Let this number be

Three-quarters, one-third, five-sixths.

I suggest you ask your math teacher to make it clearer in person.

It can't be there, even if the topic is revealed, people will come out again. This phenomenon has occurred in the college entrance examination before. Anyway, you can't cheat, don't think about crookedness.

No, I don't. Analog ah, no.

Is it fair? It's not fair to us that you're looking for answers, I want answers, too, woo woo 555555555 don't forget if you have any, brother, remember me, help me, answer I'm here 55555555

Well, I haven't done it yet, and it's just entered 2012, how can it be?

I have a few sets here, but I don't know which region and school you need.

This question is like a first-grade question, and it is not difficult at all. I know you want to refer to it too, but don't copy itYou know?

1. Calculation questions (24%)

1.Write the number directly (5%)

2. Fill-in-the-blank questions: (22%)

1) The number "two million four thousand six hundred and nine" is written as ( ), omitting the mantissa after 10,000 and recorded as ( ).

2) 4 tons 7 kg = ( ) tons hour = ( ) hour ( ) minute.

3) is the smallest prime number after ( ) plus ( ) of these fractional units.

4) (5) The surface area of a cube of wood with an edge length of 6 decimeters is ( ) square decimeters, cut it into the largest cone, and the volume of this cone is ( ) cubic decimeters.

6) According to the ratio of sugar and water is 1:19 to prepare a kind of sugar water, the sugar content of this sugar water is ( ) 50 grams of existing sugar, and this sugar water ( ) grams can be prepared.

7) On a school floor plan with a scale, measure the distance from the school gate to the upper grade teaching building is centimeters, and the actual distance from the school gate to the upper grade teaching building is ( ) meters.

8) Select three digits from to form a maximum three-digit number that can be divisible at the same time, and this three-digit number is ( ) to decompose it into prime factors ( ).

9) For a project, it takes 6 hours for A to complete alone, and 9 hours for B to complete alone. A and B do it together for 2 hours, and the rest of the project is done by A alone, and it takes ( ) hours to complete.

10) A string of numbers is ,...... 1, 1, 2, 2, 3, 3, 4, 4, 5, 5From the first number on the left, the 35th number is the sum of ( ) and the first 36 numbers is ( ).

11) As shown in the figure below, the ratio of the area of the shaded part to the area of the square is 5:12, the side length of the square is 6 cm, and the length of the de is ( ) cm.

3. Multiple choice questions (put the serial number before the correct answer in parentheses) :(5%)

1) The area of a triangle equal to the height of a parallelogram with an area of 12 square centimeters is ( ) square centimeters.

a．4 b．6 c．12 d．24

2) The number A is divided by the number B, the quotient is, and the simplest integer ratio of the number A to the number B is ( ).

a．:1 b．5:1 c．2:10 d．1:5

3) The ratio of the numbers A and B is 5:4, and the number B is less than the number A ( ).

a．25% b．20% c．125%

4) After 1 hour, the angle at which the minute hand turns and the angle at which the hour hand turns is different ( ).

a．330° b．300° c．150° d．120°

5) A commodity, first increase the price by 20%, and then reduce the price by 20%, the current ** compared with the original, (

A is raised, b is lowered, c is unchanged, d is not determined.

4. Operation questions: (10%)

1 How to cut a rectangular cardboard box with a length of 10 cm and a width of 6 cm (as shown below) to make a cube carton with a edge length of 2 cm (the joint is ignored and not considered)? In the diagram, the shaded part is indicated to be cut. At least two different scenarios are given. （3%）

The kindergarten teacher distributes a certain number of biscuits to the students, and the number of children is directly proportional to the number of biscuits distributed to each child.

It is different in each region, so if you need it, it is recommended to borrow it from a former grade.

Don't be opportunistic, but you also want to practice.

It's different every year, and if you're looking for this year's, unless you're the Secretary for Education.

I get up in the morning and memorize it before going to bed.

To do basic math problems, first familiarize yourself with the textbook.

If there is an English composition in the exam, memorize the composition from the English textbook.

Memorize more, read more, and that's it...

Outer radius: 26 2 = 13 (cm).

Inner radius: 10 2 = 5 (cm).

The side area is: 13 -5 ) Judge shed flat excavation regular square centimeter) = 45216 (square millimeter).

One roll has: 45216 mm marking) = m)

Noh shop: 2 square meters).