Adding and Subtraction Fractions Should Begin with Students Using Prior

question 15

Multiple Choice

Adding and subtraction fractions should begin with students using prior knowledge of equivalent fractions.Identify the problem that may be more challenging to solve mentally.

• A)Luke ordered 3 pizzas.But before his guests arrive he got hungry and ate 38 of one pizza.What was left for the party?
• B)Linda ran 1 12 miles on Friday.Saturday she ran 2 18 miles and Sunday 2 34.How many miles did she run over the weekend?
• C)Lois gathered 34 pounds of walnuts and Charles gathered 78 pounds.Who gathered the most? How much more?
• D)Estimate the answer to 1213+ 78.

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Definitions:

Narrative Review

A technique for literature reviews in which the author locates and reports on all the studies he or she can find, providing a qualitative summary.

Spatial Abilities

The ability to comprehend, rationalize, and recall the spatial relationships between objects or areas.

Mathematical Abilities

The capacity to perform and understand various mathematical operations, concepts, and problem-solving techniques.

Cerebral Hemispheres

The two halves of the brain, each controlling the opposite side of the body and specializing in different functions, such as language and spatial abilities.