Addition, subtraction, and estimation
This course contains 9 segments:
Rounding to nearest 10 or 100
Estimate to add multi-digit numbers
Strategies for adding two and three-digit numbers
Adding with regrouping within 1000
Estimate to subtract multi-digit numbers
Strategies for subtracting two and three-digit numbers
Subtracting with regrouping within 1000
Addition and subtraction missing value problems
Addition and subtraction word problems
Solve one-step addition and subtraction word problems within 1000.
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| Rating | Not enough ratings |
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| Length | 9 segments |
| Starts | On Demand (Start anytime) |
| Cost | Free |
| From | Khan Academy |
| Download Videos | On all desktop and mobile devices |
| Language | English |
| Subjects | Mathematics |
| Tags | Math |
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| Rating | Not enough ratings |
|---|---|
| Length | 9 segments |
| Starts | On Demand (Start anytime) |
| Cost | Free |
| From | Khan Academy |
| Download Videos | On all desktop and mobile devices |
| Language | English |
| Subjects | Mathematics |
| Tags | Math |
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