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2. Chunking (division) - Wikipedia

   en.wikipedia.org/wiki/Chunking_(division)

   To calculate the whole number quotient of dividing a large number by a small number, the student repeatedly takes away "chunks" of the large number, where each "chunk" is an easy multiple (for example 100×, 10×, 5× 2×, etc.) of the small number, until the large number has been reduced to zero – or the remainder is less than the small ...

3. Long division - Wikipedia

   en.wikipedia.org/wiki/Long_division

   If necessary, simplify the long division problem by moving the decimals of the divisor and dividend by the same number of decimal places, to the right (or to the left), so that the decimal of the divisor is to the right of the last digit. When doing long division, keep the numbers lined up straight from top to bottom under the tableau.

4. United States five-dollar bill - Wikipedia

   en.wikipedia.org/wiki/United_States_five-dollar_bill

   The current $5 bill features U.S. president Abraham Lincoln and the Great Seal of the United States on the front and the Lincoln Memorial on the back. All $5 bills issued today are Federal Reserve Notes. As of December 2018, the average life of a $5 bill in circulation is 4.7 years before it is replaced due to wear. [3]

5. Houghton Mifflin Harcourt - Wikipedia

   en.wikipedia.org/wiki/Houghton_Mifflin_Harcourt

   On November 25, 2008, Houghton Mifflin Harcourt announced a temporary freeze on acquisition of new trade division titles, allegedly in response to the economic crisis of 2008. [39] The publisher of the trade division resigned, apparently in protest. [40] Many observers familiar with the publishing industry saw the move as a devastating blunder ...

6. List of common misconceptions - Wikipedia

   en.wikipedia.org/wiki/List_of_common_misconceptions

   The repeating decimal commonly written as 0.999... represents exactly the same quantity as the number one. Despite having the appearance of representing a smaller number, 0.999... is a symbol for the number 1 in exactly the same way that 0.333... is an equivalent notation for the number represented by the fraction 1 ⁄ 3.

7. Computer keyboard - Wikipedia

   en.wikipedia.org/wiki/Computer_keyboard

   Numeric keyboards contain only numbers, mathematical symbols for addition, subtraction, multiplication, and division, a decimal point, and several function keys. They are often used to facilitate data entry with smaller keyboards that do not have a numeric keypad, commonly those of laptop computers. [ 18 ]