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But he didn't do it right. He either did n' t get it right, or he didn't read the question clearly or copy the number wrong. Moreover, he did n' t have enough time to answer the question (40 minutes). What if he gave me an hour to check it? But it's wrong. It's either the wrong calculation or the wrong question or the wrong number. And it's too late (40 minutes)............................................................
The following steps can be divided into:1. Read the problem first, to be careful, you can put the ruler under the text, read line by line, to focus attention.2. List the formula, and to, check the data, to avoid numerical errors.3. Calculation. Step by step, when you jump to calculate, I suggest you to consider more whether there are problems with your heart.4.
The following steps can be divided into:1. Read the problem first, to be careful, you can put a ruler under the text, read line by line, to focus attention.2. List the formula, and to, to check the data, to avoid digital errors.3. Calculation. Step by step, when you jump to calculate, I suggest that you think more about whether there are problems.4.
[Maths] Why do I keep counting? The degree of each internal angle of a convex N-shape is an equal difference sequence with a tolerance of 10 degrees and a minimum angle of 100 degrees. What is the number of edges N? My answer is 8,9. The correct answer is 8, Excuse me, where am I wrong in the details? [Maths] Why do I keep counting? The degree of each internal angle of a convex N-shape is an equal difference sequence with a tolerance of 10 degrees and a minimum angle of 100 degrees. What is the number of edges N? My answer is 8,9. But the correct answer is 8, Excuse me, what's wrong with me? I' ve deleted 1 solution.
0
The math is always wrong. What should we do? Specific points
0
How to reduce mathematical errors? Calculate some complex operations such as binary one-degree equation, one-degree inequality, etc., and finally calculate a score. Then the red cross will be filled with my examination paper TT, and then I often pass by 110, either 107 or 109. But the examination paper is very short and there is no time to check. How to reduce math errors? Calculate some complex operations such as binary one-time equation, one-time inequality, etc., and finally calculate a score. Then the red cross will be filled with my examination paper TT, and then I often pass by 110, either 107 or 109. But the examination paper is very short and there is no time to check.
Do more to improve your proficiency.
You can check many times after the primary school exam, but there are many mistakes; junior high school may have the time to check after the completion of the high school exam, but the error rate compared to the primary school, junior high school will be much less.
The conclusion is that an increase in proficiency leads to a higher accuracy rate
Addition of TAT rational number - Calculate in a simple way: 1.(-6.8)+4 5/2+(-3.2)+6 5/3+(-5.7)+(+5.7) 2.(-1)+2+(-3)+4…… +(-98)+100 3.(-3/2)+(+0.25)+(-6/1)+1/2 4.4.5+(-2.5)+9+1/3+(-15+2/3)+2+1/3 These -- .(-1)+2+(-3)+4…… +(-98)+100 Yes.(-1)+2+(-3)+4... +(-99)+100
You don't have a computer?
Original formula =(-6.8-3.2)+(4 and 5/2+6 and 5/3)+(-+5.7+5.7)
=-10+11+0 =1
Original formula=1*50=50
The original expression =(-8/12)+(3/12)-(2/12)+6/12=-1/12/ is preceded by a molecule
Original formula =(4.5-2.5)+(9 and 1/3+2 and 1/3-15 and 2/3)=2-4=-2
In a short essay, there are five blanks, seven alternative answers, and each blank has only one most appropriate option, i.e. each of the seven blanks fills in the correct position. What is the probability of two, three, four, five? What is the mathematical expectation? In English, there was a choice of five answers. If it was completely Hu Meng, what was the probability of one answer? What was the probability of two, three, four, and five? What was the mathematical expectation?
P5=C (5 5)/A (5 7)
P4=C (4 5)*(A (1 3)-1)/A (5 7)
P3=C (3 5)*(A (2 4)-(1+2*2)/A (5 7)
P2=C (2 5)*(A (3 5)-(1+3*2+3*(A (2 4)-(1+2*2))/A (5 7)
I can't afford to lose the rest, but it should be easy to figure it out.
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