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Reasonable Fractions

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Reasonable Fractions
Grade Levels
3rd, 4th, 5th
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PRODUCT DESCRIPTION

Use this product to assess your students ability of rounding fractions to the nearest benchmark and making reasonable sums and differences.

I highly recommend introducing this key concept by using the following Learnzillion Lesson:

https://learnzillion.com/lesson_plans/5966#fndtn-lesson

CCSS 5.NF.A.2 Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7, by observing that 3/7 < 1/2.

Texas TEKS: 4.3 (F) 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
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Reasonable Fractions