23 The oral arithmetic process of 10:36? 23 The process of calculating 10:31?

Hello, 23+36=59

We can first add the single digits of the two additions, i.e. 3+6=9. The number 9 is the single digit of the result.

Add the tens of digits together, i.e. 20 + 30 = 50.

Because the number on the ten digit represents a multiple of 10, use 20+30

Then use 50 + 9 = 59 to get the result of 59.

That's it for the solution.

Let's summarize the algorithm of addition:

While children learn the composition of numbers, they can also learn addition and subtraction. However, it must be noted that the initial addition and subtraction operations are inseparable from the real thing, otherwise, it is not easy for children to understand.

Families can use daily necessities to train children to add and subtract. For example, if two teacups and one teacup are there, how many teacups are there in total? There were 3 cabbages originally, 1 cabbage was eaten, and a few cabbages were left ......Parents try to use things in everyday life to ask questions, and let children do calculations while fiddling.

On the basis of physical calculations, especially after learning to read and write Arabic numerals, children should be taught the plus sign ( + minus sign (one) and the equal sign (=). At the age of five-and-a-half to six, you can make test cards so that children can learn to use numbers and symbols to add and subtract; In addition, it can also be linked to life, so that children can learn to make up their own problems to do calculations.

The above are the specific calculation skills, I hope it can be helpful to you. Satisfied.

The oral arithmetic process of 23+36: first calculate the ten digits: 20 plus 30 equals 50, then calculate the single digit 3 plus 6 equals 9, and you can also calculate the single digit first: 3 plus 6 equals 9, and then calculate the ten digits 20 plus 30 equals 50, and finally equals 59.

The number of single digits is added to the single digit, and the number obtained is in the single digit, 3+6=9;Add the tens and tens to get the number in the tens digits, 2+3=5;So the result is 59.

You can take it apart and look at it.

Count the ten digits 20 + 30 = 50 first

Calculate the single digit 3+6=9

That adds up to 59

Heart Al: 13 + 6 = 29, then 29 + 30 = 5, ten 9.

36 + 27 words, in fact, the oral arithmetic is also very simple, first add the two numbers on the single digit to 6 + 7, equal to 13, that is to say, equal to three and then go forward one bit, and then calculate the ten digits on the 3 + 2 = 5, each on the front of one is equivalent to five, plus one, that is, equal to six, in addition, 36 digits on the three, then the final result is directly equal to 63, this kind of topic guards from the arm to open the home two cost 100,000, because you are afraid that the time will exceed the time to move forward one placeAfter one digit, add one to the number in the tenth.

When calculating 36+27 orally, you can calculate 30+20=50 first

Then count 6 + 7 = 13

Result 63

Solution: 23 ten 31 is equal to Zhishi (Liang Mengyan 54).

It is known how much the demand out of 23 ten 31 is equal to.

20 + 3) + (30 + 1) Oak.

Answer: 23 ten 31 is equal to 54

In the oral arithmetic of 36+27, you can calculate 6+27=33 first, and then 30+33=63. Or when you do 36+27 orally, you can calculate 7+36=43 first, and then 20+43=63. Or when you count 36+27 orally, you can calculate 30+20=50 first, then 6+7=13, and finally 50+13 63.

The oral arithmetic technique of 33 times 31 is:

The first step is to stop the missing calculation: 1 33 = 33

The second step is to calculate: 30 33 = 990

The third step is: add up the calculation results of the sedan car to 1023

A1023. The oral arithmetic technique is to multiply 33 by 30 and add 33 by 1, and cut 31 to get the answer is 1023

33 31 mouth, the arithmetic skills can be used first 33 30 and then 33 1, but the last two hail sensitive phase base Shijia can get the result 990 + 33 = 1023

33 times 31 can be calculated separately, 33 times 30 plus 33 times 1 equals one thousand and twenty-three.

Brother Kou is calculated as 26 + 33, you can calculate (20 + 30) + (6 + 3) and then (50 + 9) = 59

You can calculate (10-5=5) first, and then (4+5=9).

It is also possible to strike early to count first (14-4=10) and then (10-1=9).

26*8 can be calculated by abacus multiplication, and multiplication before the empty market. The multiplication formula of abacus is the same as the multiplication formula of pen arithmetic, which is called the big ninety-nine formula, with a total of 81 sentences.

When calculating, use the multiplier to multiply each bit of the multiplier from the high to the low, and then abdicate and superimpose each single product in turn.

26*8, first use the 2 on the ten digits to multiply 8, call the multiplication formula "two eighty-six", and dial 16 on the abacus.

Then multiply 8 by 6 in the single digit, read "6848", and then read the carry addition formula, "4 to 6 into 1".

Finally, the product of 26*8 is 208

I hope I can help you with your doubts.

Oral arithmetic 65-48, you can first subtract 50, and then add 2.

When 37+24, you can first calculate the single digit plus 7+4=11, then calculate the ten digits plus 30+20 50, or you can first calculate the ten digits plus 30 20 50, then calculate the single digit plus 7 4 11, and finally calculate 50 11 61.

I don't know if it's 42+23 or 42 23?

42+23 uses the commutative law of addition; 42 23 is calculated using the method of factorization.

First calculate 98 minus 30, then use their difference of 68 minus 5 to get 63

Calculate 100-60=40 first

Do 240 + 40 = 280 again

Yours is my motivation to answer the questions!

In addition, 40 + 20 = 60 is calculated first, and then 5 + 7 = 12, so it is equal to 72 in the end

Subtraction is calculated first as 15-7=8, then 30-20=10, and finally added up to 18

Multiply, first calculate 45 20 = 900, then 45 7 = 315, and finally add up to 1215

If the division is divided first, it is directly equal to 5 3