98 2017 97 2018How to use simple calculations?

The simple calculation is as follows, 98 is converted to 97+1, so the original formula = (97+1) 2017-97 2018=97 2017+2017-97 2018=2017+97 (2017-2018)=2017-97=1920

The process equation is described above.

The simple calculation of 96 24+12 608 is as follows:

96 24+12 2 304 'On closer inspection, Elder Zha Gao found that it was easier for Nianla to appear 24 than 96, so he managed to change 12 into 24

96+304) 24 'Extract the common factor 24

You can multiply 12 by 608 to become 12x2 304, so that the remaining faction has a common factor of 24, and then extract 24, and then turn it into 24 times (96 plus 304), which is equal to 24 times 400 to get 9600.

Easy calculation is.

96x24+12x2x304

Extraction, then Min Shisun limb to take the gross common divisor 24.

24x(96+304)

24x400

Foot Brigade Shortage (192+608) 12

I hope I can help you, thank you!

The latter 12 and 608 are multiplied. It becomes 24 and 304 multiplied. So the result is equal to 24 times the sum of 96 and 304 in parentheses. Sun Jinmu is finally equal to 24 and 400 multiplied. Shoot.

Original 96 24+12 8 76

Crack punch 96 (24+76).

9600

In this problem, one side of the math is split into the same number, and then the multiplication distributive property is used.

to extract the common factor.

Forget it.

64 120 + 360 12 do this with simple calculations.

Apply the multiplicative distributive property. Or:

You first look at 360 12 as 36 120. In this case, it becomes 64 120 + 36 120, which is = 64 + 36 in parentheses and 120 outside the parentheses = 100 120 = 12,000

Simply use the multiplicative distributive property to make a simple calculation.

Simple calculations can be performed using distributive and associative properties:

640x12+360x12

640+360)x12

1000x12

72 (168+32)

Grinding with a cover of repentance is the simple process of this problem. Bidou.

Hello roll answer, the simple calculation method of this problem is to use the pin multiplication distribution property: axb+bxc=(a+c)xb. So the original formula is equal to (168+32)x72=200x72=14400.

The easy calculation is to extract the common divisor 72

Get. 72x(168+32)

72x200

The easy calculation method process of the Lu group is:

Sleepy Book (Wang Hong 168+32) 72

Because both multiplication equations have 72, the inverse operation of the multiplicative distributive law is that Dou Jing has 72 (168+32) and Kongshi Shen = 72 200 = 14400

The simple Yunwang matching method Hengling Mountain uses the extraction method to calculate the indication, that is, 168 72 + 72 32 = 72x (168 + 32) = 72x200 = 14400

This problem is achieved by making the method of using the common factor of opening the jujube in advance.

Because there are 12 in the two multiplications, Yun Senxian uses the inverse operation of the multiplicative distributive law to have 12 (420+11)=12 431=10 431+2 431=5172

Xie Li side, 1, the defeat of the town will be extracted 124-24.

The result is calculated as 124-24=100

2，100x15=1500

A: 124 15-24 15-1500

Such math problems are relatively simple, and require individuals to memorize the multiplication distributive law.

And you need to use the laugh multiplication distribution law backwards to use it, and it is easy to calculate the ascension of the gods. The specific process is 124 15 24 15 15 (124 24) 15 100 1500.

Mention the common factor calculation, the original formula = (124-24) 15 = 100 15 = 1500, you understand.

You can multiply (124-24) by 15 in this way, which means that one hundred times fifteen equals fifteen.

Because there is a common factor of 15, the common factor is extracted as 15 (124-24)=1500

(124-24) 25 100 25 2500Please click "Answer" in the lower right corner to support it.

124 15-24 15 Use a simple calculation to calculate this and guess what to do with the feast:

The mill or mill multiplication distributive property is used to calculate the group.

Blind 100 15

(Mill Tour 100 10 24) 15 a 24x15

Two 100x15 ten 24x15 one hunger parade 24x15

Rotten 1500

The use of multiplication to divide the anti-luck of the law of the auspicious and auspicious calculation is funny, and there is.

This question is based on the fact that the wheel hall is flexible and balanced, and Tong Wang uses the multiplicative distributive law to calculate.

Multiplicative associative laws can be utilized.