What this lesson shows
Fixes a mistake
46 rounds to 50. The 6 ones decide, not the 4 tens.
The worked example
The lesson works this one step by step: 46 to the nearest ten. Then your kid tries one like it on paper.
The steps
- The tens say which two
- The ones say which is closer
- Count the jumps
- Pick the closer ten
Helping at home
The tens only say which two tens the number sits between. The ones say which ten is closer: count the jumps from the number to each ten.
If your kid gets stuck
What do the ones say?
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
- Rounding to the nearest ten
- Which two tens?
- Halfway rounds up
- Adding by jumps
- Adding tens and ones
- Ten ones make a ten
- Subtracting tens and ones
- Trade a ten for ten ones
- Not always small from big
- Count up to subtract
- Two-step word problems
- A story for an equation
- Add four numbers
- Why trading works
- Estimate, then add