Decimals (Grade 6)
Related Topics:
Common Core for Grade 6
More Lessons for Grade 6
Examples, solutions, videos, and lessons to help Grade 6 students learn to fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.
Common Core: 6.NS.3
Suggested Learning Targets
- I can add, subtract, multiply, and divide multi-digit decimals
- I can use the standard algorithm when necessary.
- I can fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation with speed and accuracy, without math tools (i.e., calculator).
Component Skills from Previous Grades
| 5.NBT.7 Add & Subtract Decimals 5.NBT.7 Multiply & Divide Decimals Add, subtract, multiply, and divide decimals to hundredths, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. |
The following diagram gives the operations for decimals: add, subtract, multiply and divide. Scroll down the page for more examples and solutions.
6.NS.3 - Adding and Subtracting Decimals
A decimal point is a dot that is used to separate the whole number from the fractional part of a number.
To add or subtract decimals:
- Write the numbers vertically with the decimals lined up (if the number is a whole number then the decimal goes on the right end of the number)
- Add zeros to make sure there are the same number of digits in each number.
- Add or subtract as normal.
6.NS.3 - Multiply and Divide Decimals
To Multiply Decimals:
- Multiply like normal.
- Count all the decimal place values.
- Move the decimal that many places to the left.
- Estimate to check.
To Divide Decimals:
- Move decimal in divisor to make a whole number.
- Move decimal in dividend the same amount of spaces.
- Rewrite problem.
- Divide like normal.
- Bring the decimal up.
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