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4th Grade Math - Estimating Fractional Sums and Differences

Updated: Aug 26, 2025

This post explains and gives practice opportunities related to TEKS 4.3F:

evaluate the reasonableness of sums and differences of fractions using benchmark fractions 0, 1/4, 1/2, 3/4, and 1, referring to the same whole

Instruction

Estimation works with fractions, similar to with whole numbers, when benchmark fractions are used.

STAAR Practice

Between 2016 and 2025 (including redesign practice), this supporting standard has been tested 6 times on the STAAR test. Videos explaining the problems can be found below. If you'd rather take a quiz over these questions, click here. The videos below are linked to the questions in the quiz as answer explanations after the quiz is submitted.

To view all the posts in this 4th grade TEKS review series, click here.

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