This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
To find the greatest four-digit number with all different digits, we need to use the largest possible digits for each place value, starting from the leftmost digit (thousands place). Step 1: For the thousands place, choose the largest available digit, which is 9. Step 2: For the hundreds place, choose the largest remaining digit. Since 9 is used, the next largest is 8. Step 3: For the tens place, choose the largest remaining digit. Since 9 and 8 are used, the next largest is 7. Step 4: For the units place, choose the largest remaining digit. Since 9, 8, and 7 are used, the next largest is 6. Combining these digits in order gives the greatest four-digit number with all different digits. 9876 The greatest four-digit number in which all the digits are different is 9876. Send me the next one 📸