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2. File:Multiplication Table.pdf - Wikipedia

   en.wikipedia.org/wiki/File:Multiplication_Table.pdf

   You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

3. Multiplication table - Wikipedia

   en.wikipedia.org/wiki/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 arithmetic operations ...

4. Elementary arithmetic - Wikipedia

   en.wikipedia.org/wiki/Elementary_arithmetic

   Multiplication is a mathematical operation of repeated addition. When two numbers are multiplied, the resulting value is a product. The numbers being multiplied are multiplicands, multipliers, or factors. Multiplication can be expressed as "five times three equals fifteen," "five times three is fifteen," or "fifteen is the product of five and ...

5. Times table - Wikipedia

   en.wikipedia.org/?title=Times_table&redirect=no

   Times table. Add languages. Add links. Article; ... Print/export Download as PDF ... In other projects Appearance. move to sidebar hide. From Wikipedia, the free ...

6. Spache readability formula - Wikipedia

   en.wikipedia.org/wiki/Spache_Readability_Formula

   It works best on texts that are for children up to fourth grade. For older children, the Dale–Chall readability formula is more appropriate. It was introduced in 1953 in Spache's "A new readability formula for primary-grade reading materials," ( The Elementary School Journal , 53, 410–413), and has subsequently been revised.

7. 121 (number) - Wikipedia

   en.wikipedia.org/wiki/121_(number)

   a square (11 times 11) the sum of the powers of 3 from 0 to 4, so a repunit in ternary. Furthermore, 121 is the only square of the form + + + +, where p is prime (3, in this case). [1] the sum of three consecutive prime numbers (37 + 41 + 43).

8. Isotopes of iodine - Wikipedia

   en.wikipedia.org/wiki/Isotopes_of_iodine

   There are 40 known isotopes of iodine (53 I) from 108 I to 147 I; all undergo radioactive decay except 127 I, which is stable. Iodine is thus a monoisotopic element.. Its longest-lived radioactive isotope, 129 I, has a half-life of 16.14 million years, which is far too short for it to exist as a primordial nuclide.

9. Isotopes of tellurium - Wikipedia

   en.wikipedia.org/wiki/Isotopes_of_tellurium

   There are 39 known isotopes and 17 nuclear isomers of tellurium (52 Te), with atomic masses that range from 104 to 142. These are listed in the table below. Naturally-occurring tellurium on Earth consists of eight isotopes. Two of these have been found to be radioactive: 128 Te and 130 Te undergo double beta decay with half-lives of, respectively, 2.2×10 24 (2.2 septillion) years (the longest ...