Grade 3 · Number and Operations in Base Ten
CCSS.MATH.CONTENT.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.
Read this standard on the official Common Core site
Lessons that teach this standard
- What Is Multiplication? Equal Groups and Arrays
What a product means, how equal groups and arrays show it, why the order of the factors does not matter, and how the properties make the times tables shorter to learn.