Multiply whole numbers by multiples of 10 in the range 10-90.
Number Sense and Operations in Base Ten
Use place value understanding and properties of operations to perform multi-digit arithmetic.
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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.
Multiply one-digit whole numbers by two-digit multiples of 10 (from 10 through 90).