I am 0, and I am good at division. Not enough quotient 1. I'll make it up to you. I will sit when there is a vacancy. If others want to get rid of me, I will always be the winner.
(2) the meaning of "division":
When you see the word "fen", circle it. The word "divide" is preceded by a divisor and followed by a dividend. Don't forget to change places.
(3) The operation sequence of elementary arithmetic:
Parentheses grab the first place, multiplication and division rank second, and finally addition and subtraction are counted. Whoever comes first counts first.
(4) Subtraction of continuous abdication:
When you see 0, go and see which one has it. Borrowed and walked back, 0 is a bit like 9.
Operation sequence algorithm
Playing bamboo boards, connecting the sky,
Class, listen to me.
If you don't put other watches on today,
Let's start with four operations.
Mixed questions should be calculated,
Clear order is the key.
Peer-to-peer operation is the best,
Count from left to right.
Two levels of operation have emerged,
First multiply and divide, then add and subtract.
What should I do if I encounter parentheses?
It first appears in parentheses,
Count from the back in brackets,
The order cannot be out of order,
Check every step,
Right and happy.
withdraw
place
negative
law
Remember abdication subtraction,
First, reduce from one place;
Who is not enough to retreat;
Don't forget to add ten to the standard.
If the difference is 1,
It is best to remember from 0 to 10.
Successive abdication subtraction
See 0, go ahead,
Let's see who has it.
Borrow it, walk back,
0 is a bit taken as 9.
Two-step calculation application problem
Applying the two-step calculation of the problem,
Read and check the questions carefully.
Solve problems one by one,
The problem in the middle is the key.
We should accurately find the quantitative relationship,
The calculation steps should be clear.
Grab both ends of the middle belt,
It is fun to answer questions accurately.
Multi-digit song writing
Write numbers from a height,
Write as much as you want.
Who doesn't have a unit,
Remember to use the "0" top position.
10 shares
9 and 1, naughty
7, 3, 8, 2 also play naughty 6 liters 4.
(6 like whistles, 4 like flags)
Little hands. What a coincidence with small hands.
Let the students shake hands like dividing 10 into 5 and 5.
Tree planting problem
Children, open your hands,
Everyone has five fingers,
Some gaps between fingers,
Please take a closer look.
Multiplication formula of commercial songs:
(a) want to multiply, calculate the division,
Talk about what is missing in the formula.
(2) using the multiplication formula to find the quotient,
Think about the formula first:
If one number is missing,
It is the quotient obtained.
For some simple subtraction operations:
If you increase more, you will decrease, and if you increase less, you will increase more;
If you reduce more, you will increase, and if you reduce it, you will reduce it again.