43 What does 19 count first, then what does 3 9 count as the end?

Dear, when you see this question, click in. Dear, according to you, I understand it this way, 43 + 19 first count 40 + 10, then 3 + 9, and finally 50 + 12 = 62, I personally think it's faster to do this.

Column-vertical calculation is 43+19

Problem solving idea: the single digit of the two additive numbers is aligned, and the numbers on the same counting unit are added, and the addition result is 10 to the high position, and the high level needs to accumulate the result of the low position to 1.

Problem solving: Step 1: 3+9+1=2 into 1

Step 2: 4+1=6

Step 3: The calculation result is 62

If you have any doubts, please ask and be satisfied.

You can calculate 19+1=20 first

Then count 42+20

43+19 counts the ten digits first, 4+1. In the calculation of single digits, 3+9. At last. The conclusion reached was 62. You can also use vertical calculations to align the number of digits.

Calculate 40+10 first, then 3+9, and finally 50+12, which is equal to 62.

43+19 can be calculated as 40+3+19 first, which is equal to 40+22 equals 62.

Count 40-9 first, then add 4This is the algorithm for kindergarten children.

44-9 is counted first (single digits) and then (ten digits).

Analysis: Examine the nature of subtraction.

Divide 44 into 30 and 14

Count 14-9 5 first

Then count 30+5 35

First count 40-9-2-31, then 31-10-4-235

What does it come first? And what?

34-9=25, 14-9=5 first, and 3-1=2 after the collapse.

The analysis process is as follows:

34-9=25 is a two-digit subtraction, which should be calculated from a single digit, so it is 14-9=5 first, and then the coarse case of the borrowed position on the ten digits, 3-1=2 and finally the rock shirt guess the result is 25.

This is also the "borrowing ten methods" in mathematics.

<>34-9 first calculates 14-9=5, and then calculates 3-1=It is a two-digit subtraction, which should be calculated from a single digit, so it is prudent to calculate 14-9=5 first, and then calculate the debit on the ten digits, and the final result of 3-1=2 is 25. This reed is also the "borrowing ten methods" in mathematics.

Anti-swap rate of subtraction: Subtraction is anti-swap, if a and b are any two numbers, then a-b = - (b+a).

The subtraction of real numbers is defined plus signed numbers. Specifically, the process of subtraction of a number by adding the negative number of another number. And then we have 3?

3+(?This helps to keep the "simplicity" of real numbers by avoiding the introduction of "new" operators such as subtraction.

This arithmetic problem.

The addition of the circle in parentheses should be counted as orange dust circles first.

Then multiplication is calculated.

Calculate 43+9 in parentheses first, and then multiplication.

34-9 first calculates 14-9=5, and then calculates 3-1=It is a two-digit subtraction, which should be calculated from a single digit, so it is calculated 14-9=5 first, and then the debited position on the ten digits, and the final result of 3-1=2 is 25. This is also the "borrowing ten methods" in mathematics.

The anti-commutative rate of subtraction: subtraction is incommutative, if a and b are any two numbers, then a-b=-(b+a).

The subtraction of real numbers is defined plus signed numbers. Specifically, one number achieves the over-the-top process of subtraction by adding the negative number of another number. Then we have 3 = 3 + (which helps to keep the real numbers "simple" by avoiding the introduction of "new" operators such as subtraction). Bi slow.

Summary. Hello, the answer is as follows: 34-9 first calculates 14-9 = 5, then calculates 20 + 5 = 2534-9 and then counts what.

Hello, the answer is as follows: 34-9 first calculate 14-9 = 5, then calculate 20 + 5 = 25 pro, practice analysis 34-9 first divide 34 into 20 + 14, then use 14-9 = 5, then use 20 + 5 = 25, so 34-9 = 25

Subtraction is calculated first, and then addition. For the equation 53-19=34, we first calculate the subtraction 53-19, and the result is 34. Then there are no other operators, so the final finger and the result is 34.