South Dakota Standards. Addition and subtraction of decimals is like adding and subtracting whole numbers. The only thing we must remember is to line up the place values correctly.

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Study GuideAdd/Subtract Decimals

Worksheet/Answer keysAdd/Subtract Decimals

Worksheet/Answer keysAdd/Subtract Decimals

Worksheet/Answer keysAdd/Subtract Decimals

Worksheet/Answer keysAdding and Subtracting

Vocabulary/Answer keysAdd/Subtract Decimals

SD.4.N. Number Sense: Students will develop and use number sense to investigate the characteristics of numbers in a variety of forms and modes of operation.

4.N.1. Analyze the structural characteristics of the real number system and its various subsystems. Analyze the concept of value, magnitude, and relative magnitude of real numbers.

4.N.1.3. Comprehension: Students are able to use a number line to compare numerical value of fractions or mixed numbers (fourths, halves, and thirds).

4.N.1.3.a. Identify improper fractions, proper fractions, and mixed numbers.

4.N.2. Apply operations within the set of real numbers.

4.N.2.2. Application: Students are able to add and subtract decimals with the same number of decimal places.