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2. Number Sense (UIL) - Wikipedia

   en.wikipedia.org/wiki/Number_Sense_(UIL)

   Since Number Sense is designed to test students' mental math abilities, no calculators or scratch paper can be used during competition. In order for a question to be scored as correct the exact answer must be given (no allowance for rounding), except where the question is preceded by an asterisk, in which case for the question to be scored as ...

3. Mental calculation - Wikipedia

   en.wikipedia.org/wiki/Mental_calculation

   People may use mental calculation when computing tools are not available, when it is faster than other means of calculation (such as conventional educational institution methods), or even in a competitive context. Mental calculation often involves the use of specific techniques devised for specific types of problems.

4. Cognitive acceleration - Wikipedia

   en.wikipedia.org/wiki/Cognitive_acceleration

   Using the CA approach in teaching primary and secondary maths, known as CAME, produced similar results. [3] Later development extended the range of lesson activities in primary science from the Foundation Stage through to year 5. Currently under development are activities for English at Key Stage 3.

5. Worksheet - Wikipedia

   en.wikipedia.org/wiki/Worksheet

   The form comes with two worksheets, one to calculate exemptions, and another to calculate the effects of other income (second job, spouse's job). The bottom number in each worksheet is used to fill out two if the lines in the main W4 form. The main form is filed with the employer, and the worksheets are discarded or held by the employee.

6. Mnemonic peg system - Wikipedia

   en.wikipedia.org/wiki/Mnemonic_peg_system

   The person-action-object (PAO) system is the most complex. [3] It associates all numbers 00-99 with a distinctive person, action and object. Any six-digit number can be memorized by using the person assigned the first two digits, the action of the next two digits and the object of the third. [3] For example: The number 34 could be Frank Sinatra.

7. Exercise (mathematics) - Wikipedia

   en.wikipedia.org/wiki/Exercise_(mathematics)

   J. C. Maxwell explained how exercise facilitates access to the language of mathematics: [6] As mathematicians we perform certain mental operations on the symbols of number or quantity, and, proceeding step by step from more simple to more complex operations, we are enabled to express the same thing in many different forms.