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2. 6 - Wikipedia

   en.wikipedia.org/wiki/6

   A hexagon also has 6 edges as well as 6 internal and external angles. 6 is the second smallest composite number. [1] It is also the first number that is the sum of its proper divisors, making it the smallest perfect number. [2] 6 is the first unitary perfect number, since it is the sum of its positive proper unitary divisors, without including ...

3. Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Elementary_arithmetic

   The symbols for elementary-level math operations. From top-left going clockwise: addition, division, multiplication, and subtraction. Elementary arithmetic is a branch of mathematics involving addition, subtraction, multiplication, and division.

4. Grid method multiplication - Wikipedia

   en.wikipedia.org/wiki/Grid_method_multiplication

   to find the answer 6900 + 2760 = 9660. However, by this stage (at least in standard current UK teaching practice) pupils may be starting to be encouraged to set out such a calculation using the traditional long multiplication form without having to draw up a grid.

5. Integer - Wikipedia

   en.wikipedia.org/wiki/Integer

   The word integer comes from the Latin integer meaning "whole" or (literally) "untouched", from in ("not") plus tangere ("to touch"). "Entire" derives from the same origin via the French word entier, which means both entire and integer. [9] Historically the term was used for a number that was a multiple of 1, [10] [11] or to the whole part of a ...

6. Number theory - Wikipedia

   en.wikipedia.org/wiki/Number_theory

   Number theory is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic functions.German mathematician Carl Friedrich Gauss (1777–1855) said, "Mathematics is the queen of the sciences—and number theory is the queen of mathematics."

7. Multiplication - Wikipedia

   en.wikipedia.org/wiki/Multiplication

   Here, 2 is being multiplied by 3 using scaling, giving 6 as a result. Animation for the multiplication 2 × 3 = 6 4 × 5 = 20. The large rectangle is made up of 20 squares, each 1 unit by 1 unit. Area of a cloth 4.5m × 2.5m = 11.25m 2; 4 ⁠ 1 / 2 ⁠ × 2 ⁠ 1 / 2 ⁠ = 11 ⁠ 1 / 4 ⁠

8. Look-and-say sequence - Wikipedia

   en.wikipedia.org/wiki/Look-and-say_sequence

   6 C 3113112211322112211213322112 B 3847.0525419 7 N 111312212221121123222112 C 5014.9302464 8 O 132112211213322112 N 6537.3490750 9 F 31121123222112 O 8521.9396539 10 Ne 111213322112 F 11109.006696 11 Na 123222112 Ne 14481.448773 12 Mg 3113322112 Pm.Na 18850.441228 13 Al 1113222112 Mg 24573.006696 14 Si 1322112 Al 32032.812960 15 P 311311222112

9. Word problem (mathematics education) - Wikipedia

   en.wikipedia.org/wiki/Word_problem_(mathematics...

   Word problem from the Līlāvatī (12th century), with its English translation and solution. In science education, a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation.