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2. Positional notation - Wikipedia

   en.wikipedia.org/wiki/Positional_notation

   Positional notation, also known as place-value notation, positional numeral system, or simply place value, usually denotes the extension to any base of the Hindu–Arabic numeral system (or decimal system). More generally, a positional system is a numeral system in which the contribution of a digit to the value of a number is the value of the ...

3. Academic grading in the United States - Wikipedia

   en.wikipedia.org/wiki/Academic_grading_in_the...

   t. e. In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from ...

4. Summative assessment - Wikipedia

   en.wikipedia.org/wiki/Summative_assessment

   Summative assessment, summative evaluation, or assessment of learning[1] is the assessment of participants in an educational program. Summative assessments are designed both to assess the effectiveness of the program and the learning of the participants. This contrasts with formative assessment which summarizes the participants' development at ...

5. Mathematics - Wikipedia

   en.wikipedia.org/wiki/Mathematics

   Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself. There are many areas of mathematics, which include number theory (the study of numbers), algebra (the study of formulas and related structures), geometry (the study ...

6. Educational stage - Wikipedia

   en.wikipedia.org/wiki/Educational_stage

   The high school itself is broken into 2 parts: A and B. [further explanation needed] Preschool educations are informal, therefore Grade 1 is the first year. In Grade 1 (پایه‌ی 1, Paye 1) also known as the 1st class (کلاس اوّل, Klãs Avval), children learn the basics of reading and writing.

7. Inflation, China’s stumbling economy, and apocalyptic fear ...

   www.aol.com/finance/inflation-china-stumbling...

   The period surrounding the Global Financial Crisis seemed to prove the goldbugs right. Between 2008 and 2012, as markets worldwide faltered, the value of the precious metal more than doubled, far ...