Videos to help Grade 4 students learn how to transit from four partial products to the standard algorithm for two-digit by two-digit multiplication.
Common Core Standards: 4.NBT.5, 4.OA.3, 4.MD.3
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Lessons for Grade 4
Common Core For Grade 4
Problem 3
Solve 46 x 63 involving a regrouping in the second partial
product.
1. Express 23 × 54 as two partial products using the distributive property. Solve.
23 × 54 = (___ fifty-fours) + (___ fifty-fours)