What Are Number Sense Tricks?


Quick Answer

A number sense trick is a memorization technique used to aid in making mental calculations without any other assistance. They are primarily associated with "number sense tests" used in academics and in competitive mathematics.

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Full Answer

Number sense generally refers to the ability to perform mental mathematics. Number sense tricks can range from focusing on memorization of prime numbers and key squares to techniques that are similar to mnemonic devices, such as the FOIL method for multiplying two-digit numbers.

In 1989, the National Council of Teachers defined number sense as having five components: number meaning, number relationships, number magnitude, operations involving numbers and referents, and referents for numbers and quantities. Any tricks that aids in performing any of these functions could be said to be a number sense trick.

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