Grade 3 - Addition and Subtraction Unit

Standards covered:

  • 3.4 Number and operations
    • 3.4A

      Solve with fluency one-step and two-step problems involving addition and subtraction within 1,000 using strategies based on place value, properties of operations, and the relationship between addition and subtraction.

    • 3.4B

      Round to the nearest 10 or 100 or use compatible numbers to estimate solutions to addition and subtraction problems.

    • 3.4C

      Determine the value of a collection of coins and bills.

The Addition and Subtraction Unit involves identifying situations in the world outside the classroom in which each operation may be used to solve problems. Questions to answer may include:

  • How do addition situations differ from subtraction situations?
  • How are the operations of addition and subtraction related?
  • How can mental math, rounding, and/or the use of compatible numbers help to determine whether the solution to an addition or subtraction problem makes sense?
  • Given an addition or subtraction equation, how can you create a situation to match it?

Find tasks by units of study

Select Units and Find Tasks By Standard

N/A: Denotes standards that are not applicable to problem solving.

The N/A classification refers to TEKS Standards that cannot be assessed through problem solving.

For this reason, tasks have not been included for these particular standards.

K.7A K.7B K.9B K.9C K.9D

Summative Assessment Task

Students determine how many extra snack bars are given to a teacher for snack.

Instructional Tasks/Formative Assessments

Students determine if there are fewer students in grade 4 than in grade 3 at Elmwood School.

Students determine how many stickers are shared between two children so both end up with the same amount.

Students determine how far Uncle Bill drives on the family car trip.

Given various point totals for a beanbag toss game, students determine how Valeria and Ethan each reached their total score.

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