Free Printable WorksheetMathGrade 4Math Curriculum4.100

4.100 Use Estimation to Assess Reasonableness of Solutions Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Grade 4 Math worksheet provides structured practice on 4.100 Use Estimation to Assess Reasonableness of Solutions. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Given a problem and a proposed answer, select whether the answer is reasonable based on an estimate. (CCSS 4.OA.A.3; CCSS 4.NBT.A.3)

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Grade 4

Subject

Math

Domain

Math Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 4.100 Use Estimation to Assess Reasonableness of Solutions skill assessments:

Problem 1Difficulty: Mastery
A class orders 40 boxes with 7 markers in each box. A student estimates the total number of markers as about 420. Is the estimate reasonable?
AReasonable
BNot reasonable (too high)
CNot reasonable (too low)
DCannot determine from the information given
Solution & Explanation:Round 40 to about 40. Then 40 × 7 = 280. The proposed estimate is much higher than this, so the answer is Not reasonable (too high).
Problem 2Difficulty: Mastery
A team buys 7 supplies that cost about $49 each. A student estimates the total cost as about $350. Is the estimate reasonable?
AReasonable
BNot reasonable (too high)
CNot reasonable (too low)
DCannot determine from the information given
Solution & Explanation:Round $49 to about $50. Then 7 × $50 = $350. The proposed estimate is close to this.
Problem 3Difficulty: Mastery
A library has 248 fiction books and 218 nonfiction books on a cart. A student estimates the total as about 200 books. Is the estimate reasonable?
AReasonable
BNot reasonable (too high)
CNot reasonable (too low)
DCannot determine from the information given
Solution & Explanation:Round to the nearest hundred: 248 is about 200, and 218 is about 200. The total is about 400. The proposed estimate is too low.

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Grade 4 Math students. It aligns with educational standard 4.100 (Use Estimation to Assess Reasonableness of Solutions).

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