What this lesson shows
32 − 8 in blocks: 2 ones are not enough, so trade a rod for 10 ones. 24.
The worked example
The lesson works this one step by step: 32 − 8 = □. Then your kid tries one like it on paper.
The steps
- Not enough ones
- Open a ten
- Take away
Helping at home
Show the number in tens and ones. When there are not enough ones, trade a ten for 10 ones, then take away.
If your kid gets stuck
Are there enough ones?
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.