0123456789 ten numbers are listed in one formula. All numbers can only be used once
Can you make it clear that the following formula is what you want? It can be discussed in the future
0=1×2+3+4+7+6-5-8-9
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- 1. 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.
- 2. 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______ .
- 3. 0123456789 how to make up the vertical column of addition with ten numbers
- 4. 0-9 ten sequence of five addition formula, each number only once 0123456789 ten numbers are filled in (), each number is used only once. () + () = () + () = () + () = () + () = () + () = () + ()
- 5. Fill in 10 numbers of 0123456789 in (), each number can only be used once () + () = () - () = () - () = () - () = () - () = ()-(
- 6. Fill in 10 numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 in □, and each number is used only once
- 7. Fill in the ten numbers 0123456789 in (). Fill in each number once. () + () = (), () - () = (), () times 9 () = ()
- 8. What multiplication formulas can I write with 2, 3, 5, decimal point and multiplication sign
- 9. 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
- 10. 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?
- 11. Fill in 0123456789 in the box. Each number can only be used once. Think of at least four formulas
- 12. 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
- 13. Use 0, 1, 2, 3 to form a number without repetition. How many four digits are there
- 14. 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
- 15. 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
- 16. How many four digit numbers can be made up of numbers 0, 1, 2, 3 and 4
- 17. With the four numbers of 2, 3, 4 and 5, many four digit numbers without repetition can be formed. What is the sum of all these four digit numbers
- 18. ( ) ( ) ( ) + ( ) ( ) ( ) = () use the 10 numbers of 0, 1 and 2.9 to form an addition vertical. 0.9 cannot be used repeatedly
- 19. Use 0,1,2,3.9 to form an addition vertical, and the numbers can't be used repeatedly
- 20. How to fill the 10 numbers 0.1, 2, 3, 4, 5, 6, 7, 8, 9 in the arithmetic problem of addition and subtraction