The law of solving mathematical problems in the second volume of the third grade is 1, 49 gets one from one to one, four from two to two, and nine and forty-six from three to three.

1,4,9, 16,25……

The solution of the second volume of mathematics in grade three is11×1=121.

1 1×22= 1 1* 1 1*2=242

13×44= 1 1*4* 13=572

14×33= 1 1*3* 14=462

15×88= 1 1*8* 15= 1320

16×55= 1 1*5* 16=880

Mathematics Grade Three Volume 2: Seeking the Law 1, 3, 4, 7, (), ()118.

The sum of the first two numbers is the third number.

1+3=4

4+7= 1 1

1 1+7= 18

Book 2, Grade 3, find the mathematical law and fill in the numbers 1, 9, 2, 8, 3, 7 to find the answer, and then it should be 4, 6.

The number in single digits increases by 1, and the number in two digits decreases by 1.

Math teaching in the second volume of the third grade, 1, 8, 27, how to find the law? I haven't learned cubes in the third grade.

The law is1x1x1=1,2x2x2 = 8, xx3x3 = 27.

The next ones are 4x4x4 = 64 5x5x5 = 125, 6x6x6 = 2 16. . . . . .

Looking for a regular math problem, volume 2, grade 3, fast calculation of oral numbers, training 3, looking for a regular 7.14.9.19 () put the number 1+ number 2+ number 3+ number 4+ number 5. ...

2 1 24 22 26 23 28

Then the number 6+ the number 7 = 24.

Number 7= 17

The solution of the second volume of mathematics in grade five is 1, 0.5, 0.5+2, 2.5+2.5, 5+2, 7+7, 14+2, 16+ 16.

So 2/2 1, 2/2 1, 5, 7, 14, (? 16 ),( 32 )

2、

2, two thirds 1, 1, two thirds 1, (? 1 ? ),( ? 1/4 )

2, two thirds 1, 1, two thirds 1, (? 4/3 ? ),( ? 1/4 ? )

The first one starts with 2, and every other one is divided by 2. Starting from 1, every other one is added with 1.

The second is starting from 2, dividing every other one by 2, starting from 1, and multiplying every other one by 2.

I hope it helps!

Looking for rules in the second volume of mathematics in PPT, grade five, I wonder if you are talking about courseware made by yourself or online?

If it is downloaded online, download it from the "People's Education Resource Zone" of your own "Thousand Education Network".

Free and registered

If the teacher in your school made it himself, it is estimated that it will not be online.

In the second volume of Grade Three, I will tell you the law by filling in the numbers:164 = 2 * 41+18+23.

228=2*57+26+ 18

Then the first question mark formula is 436/2- 109-63=46.

The second question mark formula is 8 12/2-94-203= 109.