Let's denote the two four-digit numbers as ABCD and EFGH, where A, B, C, D, E, F, G, H are digits. The sum of the two numbers is 8000, so we have 1000A + 100B + 10C + D + 1000E + 100F + 10G + H = 8000. The difference between the two numbers is 500, so we have 1000A + 100B + 10C + D - (1000E + 100F + 10G + H) = 500. By solving these two equations simultaneously, we find the two numbers are 4500 and 4000.
-499
The smallest number that rounds to 8000 is 7500. When rounding to the nearest thousand, numbers that are 500 or greater get rounded up. In this case, 7500 is the smallest number that, when rounded to the nearest thousand, becomes 8000.
8000 ÷ 20 = 400
323 and 177
When rounding to the nearest thousand, half round up and half round down.Half of 1000 is 500 → numbers that are 8000 ± 500, that is 7500 to 8500 will round to 8000 to the nearest 1000.However, numbers half way by convention round up and 8500 is half way between 8000 & 9000 and so would round up to 9000.Thus numbers greater than or equal to 7500 and less than 8500 will round to 8000 to the nearest 1000.Therefore the largest whole number that will round to 8000 to the nearest 1000 is 8499.
-499
8000-500=7500.
0.0625
The smallest number that rounds to 8000 is 7500. When rounding to the nearest thousand, numbers that are 500 or greater get rounded up. In this case, 7500 is the smallest number that, when rounded to the nearest thousand, becomes 8000.
8000 ÷ 20 = 400
8000
8000
323 and 177
When rounding to the nearest thousand, half round up and half round down.Half of 1000 is 500 → numbers that are 8000 ± 500, that is 7500 to 8500 will round to 8000 to the nearest 1000.However, numbers half way by convention round up and 8500 is half way between 8000 & 9000 and so would round up to 9000.Thus numbers greater than or equal to 7500 and less than 8500 will round to 8000 to the nearest 1000.Therefore the largest whole number that will round to 8000 to the nearest 1000 is 8499.
503 and 521.
The 2 numbers that total 500 and are different by 156 are 328 and 172.
500