72 36 s easy arithmetic off style?

Easy Off-Form Calculation: 72 36.

Solution: When doing this kind of off-form operation, you should first consider the calculation in parentheses. Then consider multiplication and division first, and then add and subtract.

Then when we do the specific calculations, we should consider the above calculation steps and calculate the answer step by step. Here, we can divide the divisor and the divisor by 6 at the same time, so that the calculation is easier.

The detailed calculation process is as follows.

So, we can go through the simple calculation process above, and the final answer is 2.

Calculation: Solution: When calculating the vertical calculation multiplication operation, first multiply the first digit of one digit by another digit to get a one-step answer.

Then multiply the low to the high digit by another digit to get a few steps of the answer. Finally, add up all the answers you get to get the final answer.

Step 1: 6 2 = 12

Step 2: 30 2=60, Step 3: Add two calculation answers to the surface to get 72 So, we can check it by multiplication of vertical calculation, and get the answer is 72.

Hello. Off-line calculations. is a mathematical discipline term, i.e., a recursive equation.

Calculation, the operation of writing the calculation process in its entirety, that is, the calculation that is out of the vertical form.

In the four arithmetic.

, addition and subtraction are called first-level operations, and multiplication and division are called second-level operations. An equation that contains two or more operations is often referred to as a hybrid operation. The mixed operations of addition, subtraction, multiplication, and division are also called four mixed operations.

In the four mixed operations, the specified order of calculations is called the order of operations. The mathematically prescribed order of four operations is as follows:

1) Sibling operations in an equation, if only sibling operations are included, they should be performed in order from left to right. That is, mixed operations with only addition and subtraction, or only multiplication and division, in the order of operation from left to right.

2) Level 1 to 2 operations.

In an equation, if there are both first-level and second-level operations, then the second-level operation should be calculated first, and then the first-level operation. That is, "multiplication and division first, then addition and subtraction", referred to as "multiplication and division first, then addition and subtraction".

3) Parenthetical operations.

If you want to change the order of operations mentioned above, you need to use parentheses. There are three commonly used parentheses: small parentheses, which are denoted as parentheses in ( ).

Written as [ ; Braces.

When using parentheses, pull them on both sides and add them in the middle. Use parentheses first, then braces, and finally curly braces.

In an equation, if there are several parentheses, you should first calculate the multiplication or division in the parentheses, then the addition or subtraction in the parentheses, and finally the braces. When calculating, the formula inside the parentheses should be calculated in the order mentioned above, and then the resulting result should be calculated in the same order as the numbers outside the parentheses. As an example:

5) Simple algorithm to change the sign If there is a minus sign outside the parentheses, there is a plus sign or a minus sign inside the parentheses, and the number in the brackets is changed. The parentheses are outside the plus sign, and the parentheses are plus or minus, and the sign is unchanged.

Analysis of the results of vertical calculations 72 36

Problem solving idea: the dividend from the high position of each digit of the divisor to the divisor operation, each time the calculated quotient is retained, the remainder is added to the next digit for operation, in this order the dividend is calculated so the digits, the obtained quotient is combined in order, and the remainder is the result of the last operation.

Problem solving process: Step 1: 72 36=2 The remainder is: 0 According to the above calculation steps, the combined result is 2

Check: 2 36 = 72

Extended data [calculation result]: first align the last digit of the two multipliers, then use the second multiplier respectively, multiply a multiplier by each number from the last digit in turn, and finally add up the calculated result to be the product, if the multiplier is a decimal place, it can be expanded by the corresponding multiple, and finally the product is reduced by the corresponding multiple;

Problem solving process: Step 1: 6 2=12

Step 2: 3 2=60

Based on the above calculations, the results add up to 72

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

This problem needs to be simplified by using the multiplicative commutative associative law.

62 302 Easy Calculation? This question can be thought of in two ways: 62 into 60 plus 2 or 302 into 300 plus 2, 62 302 can be easily calculated. The first calculation method is 62 302 = (60 + 2) x 302 = 60 x 302 + 2 x 302 = 18120 + 604 = 18724;The second type is 62 302 = 62x (300 + 2) = 62x300 + 62x2 = 18600 + 124 = 18724.

Both simple calculations can be selected.

23 times one-fifth plus 76 divided by 5 plus one-fifth = ninety-nine and twenty-four twenty-three times twenty-four times twenty-four = four .8 times two and two and one plus sixty-two times twenty-five minus 2.5 = 0.15 plus 6.25 divided by twenty-fifth.

By observing the number, we can see that the number 302 is quite special, close to the whole hundred number 300, so we can deform it and then use the multiplicative distributive property to calculate.

This is a math problem in Primary 4 that can be calculated using the multiplicative distributive property. Divide it into 62 (300+2).

First of all, we can decompose 35 into 30 and 5 according to the distributive law of multiplication and purity, and then search for dry and calculate them separately

Finally, add the two results together:

Therefore, 35 19 = 665.

35 19 And it is written: Chang coarse.

Therefore, the result of 35 19 is 665.

The simple operation of 25 74 40, the so-called de-dusting type, is to take it step by step, and these 74 and 40 are exchanged for nuclear disturbances.

25x74x40

25x40x74

1000x74

Because of the dismantling of Li Dan, it is a travel disturbance Lu 25x4=100

2x5=10

4x25=100

8x125=1000

You can think of 24 as 6 4, and then use the multiplicative associative law to calculate it more easily, 600. The steps are as follows:

or

or

(*For) newcomers want to like more

I think the easy way to do this is to divide this 24 into 4 and 6, and that's exactly what it is.

Solution: 24 25=6 4 25=6 (4 25)=6 100=600, using the associative law of multiplication.

Summary. 135 88 simple arithmetic off-style.

Kiss, the answer is 11800, the process is shown in the figure, if you have any questions, you can ask me about the spring bend ridge, if you are satisfied, please give a thumbs up and encourage it, thank you.

Solution=3535 2

Off-form calculation is a mathematical term, that is, recursive equation calculation, and the calculation process is written out in its entirety, that is, it is out of vertical calculation.

How to calculate the dismantling of the locust off the type? The main thing to master is to remember to calculate multiplication and division first, and then addition and subtraction. In the calculation of multiplication and division, it is necessary to calculate in the order of the balance oak from left to right. When you encounter parentheses, you want to first calculate the inside of the parentheses.