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2. Grid method multiplication - Wikipedia

   en.wikipedia.org/wiki/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 grammar school method.

3. Multiplication algorithm - Wikipedia

   en.wikipedia.org/wiki/Multiplication_algorithm

   If a positional numeral system is used, a natural way of multiplying numbers is taught in schools as long multiplication, sometimes called grade-school multiplication, sometimes called the Standard Algorithm: multiply the multiplicand by each digit of the multiplier and then add up all the properly shifted results.

4. Khan Academy - Wikipedia

   en.wikipedia.org/wiki/Khan_Academy

   Its website also includes supplementary practice exercises and materials for educators. It has produced over 10,000 video lessons [6] teaching a wide spectrum of academic subjects, including mathematics, sciences, literature, history, and computer science. All resources are available for free to users of the website and application.

5. Electronic assessment - Wikipedia

   en.wikipedia.org/wiki/Electronic_assessment

   Summative assessment – Summative assessments provide a quantitative grade and are often given at the end of a unit or lesson to determine that the learning objectives have been met. Practice Testing – With the ever-increasing use of high-stakes testing in the educational arena, online practice tests are used to give students an edge.

6. ACT (for-profit organization) - Wikipedia

   en.wikipedia.org/wiki/ACT_(for-profit_organization)

   ACT Academy [22] is a free online learning tool and test practice program designed to help students prepare for the ACT test. ACT Aspire [23] measures readiness in English, math, reading, science, and writing from the elementary grades through early high school (grades 3–10). Performance on ACT Aspire predicts performance for early high ...

7. Multiplication - Wikipedia

   en.wikipedia.org/wiki/Multiplication

   Multiplication can also be thought of as scaling. 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 ⁠