Add one digit to each digit, ten digits to each digit, and one hundred digits to each digit, then put the digits of the separately added numbers together in order, and then add one to the number by rounding.
Addition means that the symbol of addition is the plus sign "+". Connect items with a plus sign when adding. Add and after the equal sign "=". For example, if the sum of 1, 2 and 3 is 6, it will be written as: 1+2+3 = 6.
Extended data
Operating rule
1, additive commutative law: In the addition operation of two numbers, the positions of two addends are interchanged and the sum is unchanged. Letters indicate:
a+b=b+a
2, the law of addition and association: three numbers are added, first add the first two numbers, and then add another addend; Or add the last two numbers first, then add another addend, and the sum remains the same. Letters indicate:
(a+b)+c=a+(b+c)
3. Law of Multiplication and Interchange: In the multiplication operation of multiplying two numbers, the positions of the two multipliers are interchanged and the product remains unchanged. Letters indicate:
a×b=b×a
4. Multiplication and association law: When three numbers are multiplied, the first two numbers are multiplied first, or the last two numbers are multiplied first, and the product remains unchanged. Letters indicate:
(a×b)×c=a×(b×c)