Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 x 5 = 40, one knows 40 / 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
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Khan - Dividing Whole Numbers and Applications 1 Work through a problem on division and documenting the question in different ways (2:28) |
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Khan - Lattice Multiplication Complete a multidigit multiplication question using the lattice method (7:15) |
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