126 67 72 8 102 33 4 2 How to calculate it simply?

Easy to calculate.

The core of simple operation is to use the laws of addition and multiplication to calculate, and calculate the integer part to facilitate the subsequent calculation. Problem solving process:

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

So it is possible to perform addition and subtraction operations separately.

According to the topic, the calculation process is as follows, and the simple method uses the commutative law of addition and the associative law. Specific: Eleven.

You can use it first, then you can use it, and then we are using 129-77=52

This makes the calculation much easier.

Solution: Generally, you are given a formula to find a simple calculation, which means that the two formulas can be added up to become an integer, and there are no decimals, which is convenient for operation.

In the question, you can first add ( and then subtract (

This becomes 129-77 52

Hope, thank you.

The simple algorithm for this problem can first add the additions together to make an integer, and then add the subtractions together to make a subtraction.

126 points 67 + 2 points 33 = 130

72 points 8 + 4 points 2 = 77

According to the law of addition and associativity, one.

The simple calculation process is as follows. Hope.

Hope mine can help you.

When calculating this type of calculation problem, first observe the characteristics of each number to see if the numbers can be made into an integer. Original =

One eleven two (eleven (ten.)

II 129-77-52.

Twelve thirty-seven plus eight sixty-three equals twenty-one. Three points two seven plus two point seven three equals six. Twenty-one minus six equals fifteen.

How easy to calculate? Turning it into, so only quietly becoming a cave mountain thought, first counting, so finally, so the result after the most difficult is about equal to 68.

Hello! Very happy with your question!

Easy to calculate. Original Lift (

Bright answer with 40 30

Yours is the greatest support to me! Break a leg! Thank you!

Hello, this problem is buried in a simple calculation, using the bending front addition commutative law and the associative law rotten return. The original formula is equal to (.

Using the associative law and the exchange rate, we find a pin method for calculating the type of rubber that is not calculated together.

The simple calculation of is (, because the addition of two numbers is an integer 30, and the addition of two numbers is an integer 10, so the simple calculation is (

The easy way to calculate is (

According to the commutative law of addition, the numbers in the problem are combined every time, and the original formula =

It can be easily calculated in this way, and it is easy to calculate.

A simple calculation of this equation is: the original formula (.

The original formula is equal to (, calculates 30+, and the final result is.

The solution to the problem is to use commutative and associative properties to calculate.

I hope mine is helpful to you, I wish you to study hard every day, thank you!

Solution: This problem is calculated in a simple way, and two groups of decimal numbers that can be made up of integers can be combined together to calculate

Ten Ten Ten (Ten Ten (Ten 30 Ten.)

This should be the exchange addition of the whole number, that is, the first and third terms are added to give 30, and the second and fourth terms are added together, so the sum is.

The order of exchange is added separately.

Ten ten, ten. Ten ten, ten.

Ten ten, ten.

20) 10) ).

II. 30 XII

Are you sure the topic is not?

That's how it should be.

It's a pleasure to argue that your question is missing.

Solution: Yu original =