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Anonymous users2024-02-11Well, hello. 1. The 10 8 6 4 2 is the subtraction of 2 between two adjacent numbers, from which it is inferred. 5 in the middle, in the front is to add 2 all the timeThat is: 11 9 7 5 3 1, so it's always minus 2.
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Anonymous users2024-02-10In the first grade of primary school, it will not be too difficult, this should be about the same, to test the child's knowledge of the order of numbers.
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Anonymous users2024-02-0911) (9) (7) 5 (3) (1) (-1) But the problem is, it doesn't say that you have to fill in the number according to the rule of two, and besides, it's two different questions, the question is wrong, right? Strange! （2）（3）（4）5（6）（7）（8）
It's okay too.
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Anonymous users2024-02-08There is no universal answer to this question, as long as the number is filled in by the same law (the same amount is added or decreased each time, and the fourth one is exactly 5).
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Anonymous users2024-02-07Elementary school questions are indeed filled in (8)(7)(6)5(4)(3)(2) as long as there is a general formula for the law.
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Anonymous users2024-02-06I've seen this, it seems to be in the first grade mathematics midterm exam paper, it's 2345678. The questions in the first grade of primary school should not be as difficult as you think.,You go to the primary and secondary school G12E to find it.,The midterm exam questions are not very difficult.。。。
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Anonymous users2024-02-052, (1) (2) (3) 5 (8) (13), i.e. the sum of the first two numbers equals the following number.
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Anonymous users2024-02-04Or both. I'm familiar with the textbook, and the answer is yes.
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Anonymous users2024-02-03The first grade of elementary school should not think too much.
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Anonymous users2024-02-02There is no provision to fill in the number at the middle interval of 2.
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Anonymous users2024-02-01...This. Wipe. What is 2 questions==
It should be their--rub.
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Anonymous users2024-01-31This one... That one... Sister, did you make a mistake?
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Anonymous users2024-01-301) 50cm = (one-half) m two-fifths km = (400) m 15 minutes = (one-quarter) hour 180kg = (nine-fifths) t
2) The reciprocal of 1 is itself, and 0 has no reciprocal.
3) Three-sevenths + sevenths of the reed thick four = three-thirds of sevenths = three-sevenths of sevenths of sevenths of the uproar of three-sevenths = one and three-sevenths - three-sevenths = 1
4) Three-quarters9 Three-quarters.
6) 7 is seven-eighths of an eight, and eight is one-eighth less than nine.
7) Nineteen out of five and one in the town of five.
8) 1/10 5 4
9) One in eleven.
10) Three and four-fifths.
12) 16/27.
13) One in eight.
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Anonymous users2024-01-29Go to Xinhua Bookstore to buy it, only Xinhua Bookstore can sell textbooks.
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Anonymous users2024-01-28Kiss! Hello, it's a pleasure to answer your questions, are you talking about the title of the second volume of first-grade mathematics? Could you please send a detailed question? The second volume of mathematics in the first grade is also relatively simple. I can answer it for you, thank you!
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Anonymous users2024-01-273x plus x plus 6 equals 26
4x plus 6 equals 26
4x is equal to 26 minus 6
4x equals 20
x is equal to 5
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Anonymous users2024-01-261. See who's right.
2. Fill in the blanks. 1 Look at the number of pictures and write.
2 The two numbers adjacent to 59 are ( ) and ( ).
3 A number is 3 in the single digit and 5 in the tenth digit, and this number is ( ).
4 Please continue to write , (
5 The subtracted number is 89, the subtraction is 9, and the difference is ( ).
6 50 is 1 bigger than ( ) and 1 smaller than ( ).
7 One plus is 6, the other plus is 90, and is ( ).
8 digits are 8 digits, and there are ( ) digits.
9 Fill in the blanks according to the Hundreds Table.
10 Mom is older than 35 and younger than 41, and she is an even number. Mom may be ( ) years old, ( years old or ( ) years old.
3. Fill in " " or "=".
4. Multiple choice questions (draw "" in the "" after the correct answer.)
1 is a little less than 48. 46□ 18□ 98□
2 The number of students in Class Two (1) is more than 30 and less than 40, and the number of students in the single position is 7. How many people are in Class Two (1)?
3 How many baskets are there on the right? 30□ 20□ 50□
4 What is the number in the equation 13-7?
Numbers greater than 6 Numbers smaller than 6 6
5 =12, =10, so what is it?
5. Fill in the form. The original 45 branches, 18 ( ) vehicles, 30 pieces, 5 branches, 40 vehicles, and 9 branches, 8 vehicles, 10 pieces.
6. Draw a square and a parallelogram on the graph paper below.
Seventh, solve practical problems.
1.We received 40 bags in our class.
There are 20 bags left.
How many bags of milk were there?
2 A children's illustrated magazine, 48 pages.
I still have 8 pages to read, how many pages has Xiao Ning read?
3.Obviously, I brought a total of 70 yuan to the street to buy things, and after using some of them, I still had 30 yuan left. How much does it cost?
4 20 apples and 30 pears.
1) How many apples and pears are sold?
2) How many pears are left?
Move real objects, give examples, don't talk about it.
Take the "six" in the ten place as "nine", and the "three" in the unit position as "five", that is, take 63 as 95, and calculate 97, so 95-(-2) = 97, so 63-(-2) = 65, and finally 65
The result is 31, and from the four known figures, the circle, square, and triangle each represent three numbers. And the position of the two figures in each diagram represents a certain addition and subtraction relationship. >>>More
First of all, there are 50 people playing Bumper Chen, so there is 650-50 3 = 400 yuan left. >>>More
The solids between each two hollows are seen as a group, and the solids are formed into a series of equal differences, i.e.: 1, 2, 3... It is easy to see that if there is a set of solid elements with a space element, and if there are n hollow elements, then n(n+1) 2+n<=2005 and n is the largest integer satisfying the inequality, n=61