When a Student Estimates an Answer to an Addition Problem

question 14

Multiple Choice

When a student estimates an answer to an addition problem such as 432 + 324 = by converting it to 400 + 300 =, that student is using:

• A) the rounding up strategy.
• B) the rounding down strategy.
• C) the compatible numbers strategy.
• D) the front-end estimation strategy.

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Definitions:

Inherited Vulnerability

A predisposition to certain psychological or physical conditions passed down from parents to their offspring through genes.

Evolution of Behaviour

The study of how and why animal and human behaviors change over generations through the principles of natural selection and genetics.

Genetic Drift

A mechanism of evolution caused by random changes in the frequency of alleles within a population over time.

Natural Selection

The evolutionary process where organisms with traits that enhance survival and reproduction are more likely to pass on their genes to the next generation.