What this lesson shows
Put the number between two round numbers on a line, mark the middle, pick the closer one.
The worked example
The lesson works this one step by step: 4,372 to the nearest hundred. Then your kid tries one like it on paper.
The steps
- Find the two ends
- Mark the middle
- Put the number on the line
- Pick the closer end
Helping at home
Name the number in the unit you round to: 4,372 is 43 hundreds and 72 ones, so it sits between 43 and 44 hundreds. Draw a line with those two ends, mark the middle, and put the number on it. It rounds to the end it is closer to.
If your kid gets stuck
Which two round numbers is it between?
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 4.NBT.A.3
Use place value understanding to round multi-digit whole numbers to any place.
Matches standards in 48 statesSee each state's code
- Alabama MA19.4.9
- Alaska 4.NBT.3
- Arizona 4.NBT.A.3
- Arkansas 4.NPV.3
- California 4.NBT.A.3
- Colorado 4.NBT.A.3
- Connecticut 4.NBT.A.3
- Delaware 4.NBT.A.3
- District of Columbia 4.NBT.A.3
- Florida MA.4.NSO.1.4
- Georgia 4.NR.1.4
- Hawaii 4.NBT.A.3
- Idaho 4.NBT.A.3
- Illinois 4.NBT.A.3
- Indiana 4.NS.7
- Iowa 4.NBT.A.3
- Kansas 4.NBT.3
- Kentucky KY.4.NBT.3
- Louisiana 4.NBT.A.3
- Maine 4.NBT.A.3
- Maryland 4.NOS.A.1.b, 4.NOS.B.3.a
- Massachusetts 4.NBT.A.3
- Michigan 4.NBT.A.3
- Minnesota 3.1.1.4
- Mississippi 4.NBT.3
- Missouri 4.NBT.A.1, 5.NBT.A.5
- Montana MT.4.NBT.3, 4.D1.3
- Nevada 4.NBT.A.3
- New Hampshire 4.NBT.A.3
- New Jersey 4.NBT.A.3
- New Mexico 4.NBT.A.3
- New York NY-4.NBT.3
- North Dakota 4.NO.NBT.3
- Ohio 4.NBT.3, 5.NBT.4
- Oklahoma 3.N.1.5
- Oregon 4.NBT.A.3
- Pennsylvania CC.2.1.4.B.1
- Rhode Island 4.NBT.A.3
- South Dakota 4.NBT.A.3
- Tennessee 4.NBT.A.3
- Texas 111.5.b.2.C, 111.6.b.2.D, 111.6.b.4.G
- Utah 4.NBT.3
- Vermont 4.NBT.A.3
- Virginia 4.CE.1b
- Washington 4.NBT.A.3
- West Virginia M.4.8, M.5.7
- Wisconsin M.4.NBT.A.3
- Wyoming 4.NBT.3