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Anonymous users2024-02-071. Fill in the blanks.
1 Calculations. 2.Compute.
3.Compute.
4.Compute.
5.Compute.
6.Compute.
7.Compute.
8.Compute.
9.Calculation 75
10.Compute.
2. Answer questions.
11.Compute.
12.Compute.
963 0 1028 0
13.Compute.
14.Here are two decimals: find a+b, a-b, a b, a b
a= b=1994 0s 1996 0s
Inferences: 1. Vacuum questions.
1.Compute.
2.Compute.
3.Compute.
4.Compute.
5.Compute.
6.Compute.
7.Compute.
8.Compute.
9.Compute.
10.Compute.
2. Answer questions.
11 Calculations.
12.Compute.
13.Calculate 1998+
14.There are two decimal places below:
a= b = 1996 0 2000 0
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Anonymous users2024-02-06You're so good, 5 points are so much, at least 200 or more.
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Anonymous users2024-02-05Method 1: Move with socks such as ants.
When a calculation problem has only the same level of operations (only multiplication and division or only addition and subtraction) and no parentheses, we can "move with signs".
Method 2: Combine the Law.
a) Bracketed method.
1.When adding parentheses to addition and subtraction operations, the parentheses are preceded by a plus sign, the parentheses are unchanged, the parentheses are preceded by a minus sign, and the parentheses are changed.
2.When adding parentheses to the multiplication and division operation, the parentheses are preceded by the multiplication sign, the parentheses are unchanged, the parentheses are preceded by the division sign, and the parentheses are changed by the sign.
b) De-bracket method 1When removing the parentheses in the addition and subtraction operation, the parentheses are preceded by the plus sign, the parentheses are removed and the parentheses are unchanged, and the parentheses are preceded by the minus sign, and the parentheses are removed to change the sign (the original rubber in the parentheses is good, and now it should be changed to subtraction; It used to be subtracting, but now it is going to be added. ）
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Anonymous users2024-02-041. Fill in the blanks.
1 Calculations. 2.Compute.
3.Compute. 4.Compute.
5.Compute. 6.Compute.
7.Compute. 8.Compute.
9.Calculation 75
10.Compute.
11.Compute.
12.Compute.
963 0 1028 0
13.Compute.
14.Here are two decimals: find a+b, a-b, a b, a b
a= b=1994 0s 1996 0s
Inferences: 1. Vacuum questions.
1.Compute. 2.Compute.
3.Compute.
4.Compute. 5.Compute.
6.Compute. 7.Compute.
8.Compute. 9.Compute.
10.Compute.
11 Calculations.
12.Compute.
13.Calculate 1998+
14.There are two decimal places below:
a= b = 1996 0 2000 0
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Anonymous users2024-02-031949×（1/51-1/2000）＋51×（1/1949-1/2000）-2000×（1/1949＋1/51）＋3
0 1.First remove the parentheses and use multiplication to assign in the calculation.
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Anonymous users2024-02-02=-1-1-1+3=0
Remove the brackets and rearrange them
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Anonymous users2024-02-01I owe you too much helplessness and helplessness.
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Anonymous users2024-01-31The Book of Poetry, the National Style, the Zheng Feng, the General Zhongzi.
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Anonymous users2024-01-30Grade 6 fraction multiplication exercises.
1. Calculate the following questions, and if you can do the simple calculation, you should calculate it simply (25 3 = 75 points) and fill in the appropriate numbers or symbols in or . (6 2 = 12 points) 2) Mingbi.
6 ) = number of acacia trees
3. Multiple choice questions (2 = 3 points).
1) Calculate 27 27
The correct and reasonable way is ( ).
a. Calculate according to the law of integer multiplication. b. Split head 27 2728 = (28-1) 2728 = 28 2728 -27
c、27×2728 =27-27×1
d. Uncertainty.
2) Requirements: Are all three methods correct? You think that the algorithm ( ) is more reasonable and simpler.
34 ( a ) 34 ( b ) 3
void function(e,t))}s=0;s< ;s++)function())alog("",)window,document);
Fourth, capacity improvement.
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