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Our primary objective is to provide nurses, nursing students and instructors with a thorough, self-contained, and reliable source of information. And we hope to present the topic as a form of rational, reasonable thinking.

Please Note

The medical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

1-1 Introduction to Whole Numbers

1-2 Place Values

1-3 Rounding Whole Numbers

1-4 Adding Whole Numbers

1-5 Subtracting Whole Numbers

1-6 Multiplying Whole Numbers

1-7 Dividing Whole Numbers

1-8 Comparing Whole-Number Values

Part 2 Working with Fractions

2-1 Introducing Fractions

2-2 Converting Fractions to Higher Terms

2-3 Reducing Fractions

2-4 Converting Between Improper Fractions and Mixed Numbers

2-5 Multiplying Fractions and Mixed Numbers

2-6 Dividing Fractions and Mixed Numbers

2-7 Finding Common Denominators

2-8 Adding and Subtracting Fractions and Mixed Numbers

2-9 Comparing Fractions

Part 3 Working with Decimals

3-1 Naming Decimals

3-2 Rounding Decimals

3-3 Converting Between Fractions and Decimals

3-4 Adding and Subtracting Decimals

3-5 Multiplying Decimals

3-6 Dividing Decimals

Part 4 Working with Percentage, Ratio, and Proportion

4-1 Understanding Percentage

4-2 Understanding Ratio and Proportion

4-3 Introduction to Measurement Standards

4-4 Working with Dimensional Analysis

4-5 Doing Length Conversions

4-6 Doing Volume Conversions

4-7 Doing Mass Conversions

4-8 Doing Time and Rate Conversions

 Part 5  Dosage Calculations

5-1 Introduction to Dosage Calculations

5-2 Tablet Dosage Calculations

5-3 Fluid Dosage Calculations

5-4 Special Parenteral Medication Dosages

5-5 IV Rate Calculations

5-6 Dosage by Patient Weight

Dosage Drill. This is the go-to resource for checking and perfecting your ability to solve realistic dosage problems.