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Anonymous users2024-02-06This problem first find the law, 90 can be transformed into 45 2, and then use the extraction common divisor method, extract the common divisor 45, axb+axc=ax(b+c), the 102 and -2 of this problem are complements to each other, you can combine 102-2, and then multiply with 45, the steps are as follows:
Easy to calculate properties.
1. Multiplicative distributive property.
The most common method used in simple calculations is the multiplicative distributive property. The multiplicative distributive property refers to ax(b+c)=axb+axc. Conversely, axb+axc=ax(b+c) is called the inverse of the multiplicative distributive property (also called extracting the common divisor).
2. Multiplication associative law.
The associative law of multiplication is also a method of doing simple operations, which is expressed by letters as (a b) c=a (b c).
3. Multiplication commutative law.
The commutative property of multiplication is used to invert the positions of individual numbers: a b = b a.
4. The commutative law of addition.
The commutative property of addition is used to invert the positions of individual numbers: a+b=b+a.
5. Associative law of addition.
a+b）+c=a+（b+c）。
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Anonymous users2024-02-05Equal to 45 102-45 2, equal to 45 times the bracket 102-2 brackets, equal to 45 times 100, equal to 4500
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Anonymous users2024-02-04Think for yourself, and you'll understand. Split 90 into 45 2!
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Anonymous users2024-02-03Taiqun inside the big ah, use my 11his
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Anonymous users2024-02-02The complete process is as follows:
88 and 90 90-89 90
88 and 1 90
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Anonymous users2024-02-0189 89 90 Easy calculation, to be complete?
89x(89/90)=7921/90=
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Anonymous users2024-01-31The simple method of calculating 4500 5+90 is: 4500 5+90=4500 5+4500 50=900+90=990. Simple calculation is a special kind of rough calculation of Tongzhen, which uses the basic properties of the law of calculation and the number of fixed towns, so that the calculation is simple, and a very complex formula becomes easy to calculate the number.
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Anonymous users2024-01-30Here's how: Ridge ridge535 (Sakura sells infiltration 70+4).
2. The commutative law of addition a+b=b+a.
Additive associative law (a+b)+c=a+(b+c).
The commutative law of multiplication a b=b a can also be written as: a·b=b·a can also be written as: ab=ba.
The associative property of multiplication (a b) c=a (b c) can also be written as: (a·b)·c=a·( b·c) can also be written: (ab)c=a(bc).
The distributive property of multiplication (a+b) c=a c+b c can also be written as: (a+b)·c=a·c+b·c can also be written as: (a+b)c=ac+bc.
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Anonymous users2024-01-29Summary. The easy way to 90 + 1994 45 + 1996 55.
Hello dear, I will answer for you immediately, you wait a moment [than the heart] [than the heart] [than the heart] [than the heart] thank you. 90+1994 45+1996 55=45 Confession Stool (2+1994)+1996 Defeat 55=45 1996+55 1996=(45+55) 1996=100 Biwu Brigade 1996=199600
Here is the four operations, we can do it step by step according to the four operation rules, and the final result is 199600
Okay. Ask about custom messages].
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Anonymous users2024-01-28Hello! Glad to answer your questions!
Original 75 (100 2)+90
Bright answer with 7440
Yours is the greatest support to me! Break a leg! Thank you!
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Anonymous users2024-01-277500--150 a + 100 a spike 10
7500-6o
The multiplication method is used to assign the bright law of the cluster group, which can be simplified and the widening algorithm can be used.
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Anonymous users2024-01-26You're fine. This question can be solved in this way.
75 (Hunger 100-2) +90
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Anonymous users2024-01-2575 98 + 90 Easy Fight Destruction Base Preparation: Macro.
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Anonymous users2024-01-24The most commonly used method for simple calculations is the law of multiplication and assigning stupid leakage. The multiplicative distributive property refers to ax(b+c) = axb+axc, where a, b, c are arbitrary real numbers. Conversely, axb+axc=ax(b+c) is called the inverse application of the multiplicative search distributive law (
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Anonymous users2024-01-23Ninety is equal to forty-five times two. Thirty-seven plus two on the hall code is equal to thirty-nine. Forty times forty-five equals one thousand eight hundred, and one thousand eight hundred old men minus forty-five equals one thousand seven hundred and fifty with five slow.
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Anonymous users2024-01-22Hello, there is no easy way to calculate this problem, first calculate the multiplication, then calculate the addition, and get the result.
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