Mathematics 4
N4.2
Demonstrate an understanding of addition of whole numbers with answers to 10 000 and their corresponding subtractions (limited to 3 and 4-digit numerals) by:
- using personal strategies for adding and subtracting
- estimating sums and differences
- solving problems involving addition and subtraction.
[C, CN, ME, PS, R]
Indicators for this outcome
| (a) |
Explain how to keep track of digits that have the same place value when adding or subtracting numbers. |
| (b) |
Describe a situation in which an estimate rather than an exact answer is sufficient. |
| (c) |
Estimate sums and differences using different strategies (e.g., front-end estimation and compensation). |
| (d) |
Explain the strategies used to determine a sum or difference. |
| (e) |
Solve problems that involve addition and subtraction of more than two numbers. |
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