Decompose multiples of ten to multiply.
Multiply by tens word problems is a free educational video by Khan Academy.It helps students in grades 3 practice the following standards 3.NBT.A.3.
1. 3.NBT.A.3 : Multiply one-digit whole numbers by multiples of 10 in the range 10-90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations. (A range of algorithms may be used.).
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