What this lesson shows
Fixes a mistake
29.834 to the nearest tenth sits between 29.8 and 29.9, not 29 and 30.
The worked example
The lesson works this one step by step: 29.834 to the nearest tenth. Then your kid tries one like it on paper.
The steps
- Neighbors in that place
- Find halfway
- Closer to which?
Helping at home
The two neighbors are in the place you round to: to the nearest tenth, they are tenths, like 29.8 and 29.9, not 29 and 30. Then see which side of halfway the number falls.
If your kid gets stuck
Count by the place you round to.
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.
Standards
- Common Core 5.NBT.A.4
Use place value understanding to round decimals to any place.
Matches standards in 46 statesSee each state's code
- Alabama MA19.5.5
- Alaska 5.NBT.4
- Arizona 5.NBT.A.4
- Arkansas 5.NPV.4
- California 5.NBT.A.4
- Colorado 5.NBT.A.4
- Connecticut 5.NBT.A.4
- Delaware 5.NBT.A.4
- District of Columbia 5.NBT.A.4
- Florida MA.5.NSO.1.5
- Georgia 5.NR.4.3
- Hawaii 5.NBT.A.4
- Idaho 5.NBT.A.4
- Illinois 5.NBT.A.4
- Iowa 5.NBT.A.4
- Kansas 5.NBT.4
- Kentucky KY.5.NBT.4
- Louisiana 5.NBT.A.4
- Maine 5.NBT.A.4
- Maryland 5.NOS.A.3.b, 5.NOS.B.6.a
- Massachusetts 5.NBT.A.4
- Michigan 5.NBT.A.4
- Minnesota 4.1.2.7, 5.1.2.5
- Mississippi 5.NBT.4
- Missouri 5.NBT.A.5
- Montana MT.5.NBT.4, 5.D1.2
- Nevada 5.NBT.A.4
- New Hampshire 5.NBT.A.4
- New Jersey 5.NBT.A.4
- New Mexico 5.NBT.A.4
- New York NY-5.NBT.4
- North Dakota 5.NO.NBT.3
- Ohio 5.NBT.4
- Oregon 5.NBT.A.4
- Pennsylvania CC.2.1.5.B.1
- Rhode Island 5.NBT.A.4
- South Carolina 5.NR.1.3
- South Dakota 5.NBT.A.4
- Tennessee 5.NBT.A.4
- Texas 111.7.b.2.C
- Utah 5.NBT.4
- Vermont 5.NBT.A.4
- Virginia 5.CE.3a
- Washington 5.NBT.A.4
- West Virginia M.5.7
- Wisconsin M.5.NBT.A.4