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Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 4)
Use the Singapore math methods to work through simple problems. Visual representations of word problems allow viewers to start making predictions and estimating the answers. This is a good way for class members to use various methods to...
Khan Academy
Khan Academy: Comparing Whole Numbers
Video lesson shows how to compare the whole numbers 394 and 397 using a symbol. [2:04]
CK-12 Foundation
Ck 12: Elem Math: One Step Conversions Between Hundreds Tens and Ones
[Free Registration/Login may be required to access all resource tools.] The video uses place value to determine the number of hundreds given a specific number of ones. The video is followed by a series of practice questions to assess...