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Fill in 10 numbers of 0123456789 in (), each number can only be used once () + () = () - () = () - () = () - () = () - () = ()-（
( 0)+( 1)=( 3)-( 2)=(5 )-( 4)=( 7)-( 6)=( 9)-(8 )
RELATED INFORMATIONS
- 1. Fill in 10 numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 in □, and each number is used only once
- 2. Fill in the ten numbers 0123456789 in (). Fill in each number once. () + () = (), () - () = (), () times 9 () = ()
- 3. What multiplication formulas can I write with 2, 3, 5, decimal point and multiplication sign
- 4. How many decimal multiplication formulas can you write with the three numbers of 7, 8 and 5, as well as the decimal point "." and multiplication sign
- 5. There are 61 pieces placed in several squares, each of which must be placed. A maximum of 5 pieces can be placed in one lattice. At least how many squares have the same number of pieces?
- 6. Given the function y = (A-X) / (x-a-1), the center of symmetry of the image is (3, - 1), then the real number a is equal to
- 7. In the figure shown in the figure, all quadrangles are squares, all triangles are right triangles, and the maximum square surname side length is 7 cm Find the area sum of a.b.c.d
- 8. In tetrahedral a-bcd, e and F are the midpoint of edges AD and BC respectively, connecting AF and CE, (2) Sine value of the angle between CE and BCD. (PS:)
- 9. The bottom of a right angled trapezoid is 1.5 times of the top, and the top is extended by 16 cm to become a square. The area of the right angled trapezoid is calculated Elementary school mathematics, not equations
- 10. Using vector to solve four centers of triangle Note: generally, capital letters represent vectors, and vector * vector represents the product of two vectors 1. Prove that point O is the center of gravity of triangle ABC, which is AOB = BOC = COA 2. Prove: if h is a point in the plane of triangle ABC, and the square of the module of HA + the square of the module of BC = the square of the module of HB + the square of the module of Ca = the square of the module of HC + the square of the module of ab, then h is the perpendicular center of triangle ABC 3. Prove: if OA * (module of AB / AB - module of AC / AC) = ob * (module of Ba / BA - module of BC / BC) = OCT (module of Ca / Ca - module of CB / CB) = 0, then o is the inner core of triangle ABC 4. Prove that point O is a certain point on the plane, A.B.C is three non collinear points on the plane, the moving point P satisfies OP = OA + m (cosine value of the module and angle B of AB / AB + cosine value of the module and angle c of AC / AC), and M is greater than 0, then the trajectory of point P must pass the perpendicular center of triangle ABC
- 11. 0-9 ten sequence of five addition formula, each number only once 0123456789 ten numbers are filled in (), each number is used only once. () + () = () + () = () + () = () + () = () + () = () + ()
- 12. 0123456789 how to make up the vertical column of addition with ten numbers
- 13. With 0, 1, 2 The ten numbers, 9, constitute a four digit number, a three digit number, a two digit number and a one digit number. Each number can only be used once, so that the sum of the four numbers equals 1998, then the minimum value of the three digits is______ ．
- 14. Use 0123456789 ten numbers to form two five digit numbers, how to combine the product to the maximum? Why does 96521 * 87430 have the largest combined product? Please explain the reason of this combination.
- 15. 0123456789 ten numbers are listed in one formula. All numbers can only be used once
- 16. Fill in 0123456789 in the box. Each number can only be used once. Think of at least four formulas
- 17. Write 0 1 2 4 5 6 7 8 9 into three formulas (one addition, one subtraction, one multiplication). Each number is only used once. How can we solve it
- 18. Use 0, 1, 2, 3 to form a number without repetition. How many four digits are there
- 19. How many five digit numbers can be made up of six numbers 1, 2, 3, 4, 5 and 6? 6*5*4*3*2*1=720 Why should we multiply the number without repetition from 6 to 1? What is the meaning of multiplication here? Please help me understand deeply
- 20. Among the three digit numbers without repetition composed of numbers 1, 2, 3, 4, 5 and 6, the number that is a multiple of 9 is () A. 12 B. 18 C. 20 D. 30