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2. Addition - Wikipedia

   en.wikipedia.org/wiki/Addition

   Doubles: Adding a number to itself is related to counting by two and to multiplication. Doubles facts form a backbone for many related facts, and students find them relatively easy to grasp. [36] Near-doubles: Sums such as 6 + 7 = 13 can be quickly derived from the doubles fact 6 + 6 = 12 by adding one more, or from 7 + 7 = 14 but subtracting ...

3. Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Elementary_arithmetic

   Example of addition with carry. The black numbers are the addends, the green number is the carry, and the blue number is the sum. In the rightmost digit, the addition of 9 and 7 is 16, carrying 1 into the next pair of the digit to the left, making its addition 1 + 5 + 2 = 8. Therefore, 59 + 27 = 86.

4. Wheat and chessboard problem - Wikipedia

   en.wikipedia.org/wiki/Wheat_and_chessboard_problem

   When expressed as exponents, the geometric series is: 2 0 + 2 1 + 2 2 + 2 3 + ... and so forth, up to 2 63. The base of each exponentiation, "2", expresses the doubling at each square, while the exponents represent the position of each square (0 for the first square, 1 for the second, and so on.). The number of grains is the 64th Mersenne number.

5. Stock market today: Tech stocks and AI pull Wall Street to ...

   www.aol.com/stock-market-today-asian-stocks...

   U.S. stock indexes rose to more records Wednesday after tech companies talked up how much of a boost they’re getting from the artificial-intelligence boom. The Dow Jones Industrial Average rose ...

6. Conan O'Brien's Parents, Who Were Married for 66 Years, Die 3 ...

   www.aol.com/conan-obrien-parents-were-married...

   In addition to Conan, the couple is also survived by their sons Justin, Neal, and Luke, and daughters Kate and Jane, plus, nine grandchildren. A funeral mass will be held for the couple on ...

7. Distributive property - Wikipedia

   en.wikipedia.org/wiki/Distributive_property

   In approximate arithmetic, such as floating-point arithmetic, the distributive property of multiplication (and division) over addition may fail because of the limitations of arithmetic precision. For example, the identity 1 / 3 + 1 / 3 + 1 / 3 = ( 1 + 1 + 1 ) / 3 {\displaystyle 1/3+1/3+1/3=(1+1+1)/3} fails in decimal arithmetic , regardless of ...