There are many answers. Here is one:
58 and 20
2222
9
There are only 999 three digit whole numbers.
There are 9 1-digit numbers and 16-2 digit numbers. So a 5 digit combination is obtained as:Five 1-digit numbers and no 2-digit numbers: 126 combinationsThree 1-digit numbers and one 2-digit number: 1344 combinationsOne 1-digit numbers and two 2-digit numbers: 1080 combinationsThat makes a total of 2550 combinations. This scheme does not differentiate between {13, 24, 5} and {1, 2, 3, 4, 5}. Adjusting for that would complicate the calculation considerably and reduce the number of combinations.
9
what is the least possible sum of two 4-digit numbers?what is the least possible sum of two 4-digit numbers?
40 and 43, among others.
two consecutive 4- digit numbers have a sum of 9173.what are the numbers?
There are five such numbers.
It is not clear what the question means: there are 31 2-digit numbers that can be expressed as a sum of two squares.
The sum is 22 times the sum of the three digits.
2000.The smallest four-digit number there can be is 1000. So, add 1000 and 1000 to get 2000, then least sum you can get when adding two four-digit numbers.
Add the two greatest possible four digit numbers. 9999 + 9999
2,4,6,8,10,12,14,16,18
269
945
In any two-digit multiplication sum, for example, 3 x 2 = 6, the first digit is called the multiplier, the second digit is called a multiplicand, and the third digit, the answer, is the product.