Unit: Addition and Subtraction
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Unit Description
This unit is designed for re-teaching students that are struggling with the computation of addition and subtraction of 4 and 5 digit. It explains the column addition strategy and the trade first method of subtraction.
Standards covered:
4.NSO-C.14. Demonstrate an understanding of and the ability to use conventional algorithms for the addition and
subtraction of multidigit whole numbers.
4.NSO-C.15. Add and subtract up to five-digit numbers accurately and efficiently.
Lessons
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Addition: 4 Digit Column Addition
Resources: 3 SWBAT add whole numbers up to 4 digits using column addition. |
3,487
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Addition: 5 Digits
Resources: 3 SWBAT add whole numbers up to 5 digits using column-addition method. |
2,098
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Subtraction: 4 Digits Trade First
Resources: 3 SWBAT subtract whole numbers up to 4 digits using trade-first method. |
2,198
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Subtraction: 5 Digits
Resources: 3 SWBAT subtract whole numbers up to 5 digits using trade-first method. |
791
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Addition: Decimals Column-Addition
Resources: 2 SWBAT add whole numbers with decimals using column addition. |
903
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Unit Resources
| No resources at this time. |
