Learning Library

# 3.NBT.A.2 Exercises

#### CCSS.MATH.CONTENT.3.NBT.A.2

:
"Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction."

Our Take: A third grader should be confident adding and subtracting within 1000. Most students will have internalized a variety of strategies that help them solve these types of problems.

These exercises can help students practice this Common Core State Standards skill.

## Exercises

Two-Digit Subtraction and Regrouping
Exercise
Two-Digit Subtraction and Regrouping
This exercise showing how to execute two digit subtraction using regrouping makes the second step in subtraction much more accessible.
Math
Exercise
Exercise
Teach students how to extract information from word problems and complete three digit addition to find the solution.
Math
Exercise
Three-Digit Subtraction and Regrouping
Exercise
Three-Digit Subtraction and Regrouping
Teach students how to regroup, or borrow, during three digit subtraction problems with this easy to navigate exercise.
Math
Exercise
Three-Digit Addition on a Number Line
Exercise
Three-Digit Addition on a Number Line
Simplify the seemingly complex task of three digit addition with the following number line activity.
Math
Exercise
Three-Digit Subtraction and Regrouping Numbers with Two Zeros
Exercise
Three-Digit Subtraction and Regrouping Numbers with Two Zeros
When students move on to three digit subtraction, they’ll appreciate the helping hand from this exercise that shows how to regroup numbers with two zeros.
Math
Exercise
Exercise
Adding up missing factors will be a routine matter for students after they complete this exercise.
Math
Exercise
Estimating to Subtract
Exercise
Estimating to Subtract
For students learning how to estimate during subtraction, this exercise will make matters much simpler.
Math
Exercise
Three-Digit Subtraction on a Number Line
Exercise
Three-Digit Subtraction on a Number Line
Take the difficulty out of three digit subtraction with this exercise that shows students how to reach the correct answer using a number line.
Math
Exercise

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