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2. Multiplication table - Wikipedia

   en.wikipedia.org/wiki/Multiplication_table

   Multiplication table. In mathematics, a multiplication table (sometimes, less formally, a times table) is a mathematical table used to define a multiplication operation for an algebraic system. The decimal multiplication table was traditionally taught as an essential part of elementary arithmetic around the world, as it lays the foundation for ...

3. Grid method multiplication - Wikipedia

   en.wikipedia.org/wiki/Grid_method_multiplication

   Grid method multiplication. The grid method (also known as the box method) of multiplication is an introductory approach to multi-digit multiplication calculations that involve numbers larger than ten. Because it is often taught in mathematics education at the level of primary school or elementary school, this algorithm is sometimes called the ...

4. Trachtenberg system - Wikipedia

   en.wikipedia.org/wiki/Trachtenberg_system

   Trachtenberg system. The Trachtenberg system is a system of rapid mental calculation. The system consists of a number of readily memorized operations that allow one to perform arithmetic computations very quickly. It was developed by the Russian engineer Jakow Trachtenberg in order to keep his mind occupied while being in a Nazi concentration camp.

5. Navy rescues woman, daughter, pets from boat amid approaching ...

   www.aol.com/navy-rescues-woman-daughter-pets...

   The airplane found the 47-foot sailboat, named the Albroc, at 9 a.m. Sunday morning. The French-flagged vessel had been "beset by weather," the woman said in a mayday call. The airplane crew saw ...

6. Easy recipes to try this week: Moroccan chicken meatballs and ...

   www.aol.com/easy-recipes-try-week-moroccan...

   Transfer to a plate and repeat with the remaining meatballs, adding more oil, if necessary. To bake: Preheat the oven to 400°F. Line a large baking sheet with parchment paper. Place the meatballs ...

7. Casting out nines - Wikipedia

   en.wikipedia.org/wiki/Casting_out_nines

   Casting out nines. Casting out nines is any of three arithmetical procedures: [1] Adding the decimal digits of a positive whole number, while optionally ignoring any 9s or digits which sum to 9 or a multiple of 9. The result of this procedure is a number which is smaller than the original whenever the original has more than one digit, leaves ...