Grade 5 · Number and Operations in Base Ten

CCSS.MATH.CONTENT.5.NBT.A.3a

Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.g., 347.392 = 3 × 100 + 4 × 10 + 7 × 1 + 3 × (1/10) + 9 × (1/100) + 2 × (1/1000).

Read this standard on the official Common Core site

Lessons that teach this standard

• Decimal Place Value: Reading and Writing Decimals

  What each place after the decimal point is worth, how to read a decimal aloud, and how to write one in expanded form or as a fraction.