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2. Fourth grade - Wikipedia

   en.wikipedia.org/wiki/Fourth_grade

   Fourth grade (also 4th Grade or Grade 4) is the fourth year of formal or compulsory education. ... In math, students learn about place value up to the millions, prime ...

3. Positional notation - Wikipedia

   en.wikipedia.org/wiki/Positional_notation

   A digit's value is the digit multiplied by the value of its place. Place values are the number of the base raised to the nth power, where n is the number of other digits between a given digit and the radix point.

4. Grid method multiplication - Wikipedia

   en.wikipedia.org/wiki/Grid_method_multiplication

   Compared to traditional long multiplication, the grid method differs in clearly breaking the multiplication and addition into two steps, and in being less dependent on place value. Whilst less efficient than the traditional method, grid multiplication is considered to be more reliable, in that children are less likely to make mistakes. Most ...

5. Homework - Wikipedia

   en.wikipedia.org/wiki/Homework

   The intention of homework is to further test students' knowledge at home. However, there is a line between productive work and busy work. Busy work has no inherent value; it just occupies time. Karin Chenoweth provides an example of a student taking chemistry who must color a mole for homework. [15]

6. Tally marks - Wikipedia

   en.wikipedia.org/wiki/Tally_marks

   In the dot and line (or dot-dash) tally, dots represent counts from 1 to 4, lines 5 to 8, and diagonal lines 9 and 10. This method is commonly used in forestry and related fields. [ 6 ]

7. Musk calls for abolishing consumer finance watchdog targeted ...

   www.aol.com/news/musk-calls-abolishing-consumer...

   The knit jacket that shoppers say is better than 'JCrew cardigans' is on sale for $34