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Rio's Hundredths Dash: Write Decimals
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2 preview imagesAdded Nov 2026
About
Race along with Rio to write tenths and hundredths as decimals. Students read shaded 10-by-10 grids, write each part as a fraction and as a decimal, build decimals with base-ten blocks (a flat is 1 whole), and see that 0.5 and 0.50 name the same amount. Every direction is narrated, and wrong answers get a spoken hint.
Lesson details
- Grade level
- 4th Grade
- Subjects
- Standards
- 4.NF.C.6
- Length
- 17 scenes, 15 questions
- What students do
- Base-ten blocks
- Multiple choice
- Typed answer
- Audio
- Includes audio
- Scoring
- Includes scored questions
- Last updated
What's included
- 17 narrated scenes with Rio
- Shaded 10-by-10 grids to read
- Base-ten block mats with a flat as 1 whole
- Spoken hints for every wrong answer
Learning objectives
- Write the shaded part of a 10-by-10 grid as a fraction and as a decimal.
- Write tenths and hundredths, and numbers greater than 1, in decimal notation.
- Build a decimal with base-ten blocks, using a flat as 1 whole, a rod as 1 tenth and a small cube as 1 hundredth.
- Explain that 0.5 and 0.50 name the same amount.





