What this lesson shows
Shade by 2s to 20 and by 5s to 100. The 5s always end in 5 or 0.
The worked example
The lesson works this one step by step: by 2s to 20. Then your kid tries one like it on paper.
The steps
- Shade by 2s
- Count by 5s
- Look for the pattern
Helping at home
Skip count on a 120 chart, shading each number. By 2s, every number ends in 2, 4, 6, 8, or 0. By 5s, in 5 or 0. By 10s, in 0.
If your kid gets stuck
Look at how each number ends.
Watch it with Lux
With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.
More in this unit
- Counting on and back to 120
- The end of a row
- Tens and ones
- Fifteen is not 51
- Expanded form counts tens
- Many ways to make a number
- Extra ones make a ten
- One more, ten more
- Ten more changes the tens
- Greater than, less than
- Numbers on a number line
- The tens decide first
- Growing patterns
- About, nearly, and benchmarks
- About how many?