**Indiana Education Standards**. What Is Three-Digit Subtraction? We subtract to compare numbers. We are able to find the difference between numbers through subtraction. We use subtraction to find out how much more we have or how much smaller something is in comparison to another number. Read More...

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Study Guide3 Digit Subtraction

Worksheet/Answer key3 Digit Subtraction

Worksheet/Answer key3 Digit Subtraction

Worksheet/Answer key3 Digit Subtraction

IN.3.1. Number Sense

Students understand the relationships among numbers, quantities, and place value in whole numbers up to 1,000. They understand the relationship among whole numbers, simple fractions, and decimals.

3.1.3 Use words, models, and expanded form to represent numbers up to 1,000.

IN.3.2. Computation

Students solve problems involving addition and subtraction of whole numbers. They model and solve simple problems involving multiplication and division.

3.2.1 Add and subtract whole numbers up to 1,000 with or without regrouping, using relevant properties of the number system.

3.2.8 Use mental arithmetic to add or subtract with numbers less than 100.

IN.3.3. Algebra and Functions

Students select appropriate symbols, operations, and properties to represent, describe, simplify, and solve simple number and functional relationships.

3.3.2 Solve problems involving numeric equations.