Operations with Decimals
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Lesson Description:
Learn to add, subtract, multiply, and divide decimals.
Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.
Additional Resources:
- Adding Decimals - Tutorial on adding decimals
- Subtracting Decimals - Tutorial on subtracting decimals
- Multiplying Decimals - Tutorial on multiplying decimals
- Dividing Decimals - Tutorial on dividing fractions
Questions answered by this video:
- How do you add .4 + .3 or 4/10 + 3/10 without a calculator?
- How do you subtract .4 - .3 or 4/10 - 3/10 without a calculator?
- How do you add and subtract decimals and fractions?
- How do you multiply and divide decimals and fractions without a calculator?
- How do you do long multiplication with decimals?
- What is .4*.3 or 4/10*3/10?
- What is .3/.4?
- How do you do long division with decimals?
- How do you add 0.423 + 1.30005 without a calculator?
- How do you subtract 0.75 - 1.382 without a calculator?
- How do you multiply 3.004*2.18 without a calculator?
- How do you divide 29.95/4.5 without a calculator?
- How do you know how many places to move the decimal point when you multiply or divide decimals?
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Staff Review
This lesson deals with adding, subtracting, multiplying, and dividing decimals and fractions. Several examples of each operation are shown, with many different types represented. Some of these problems are quite difficult.
