What this lesson shows
Fixes a mistake
2.459 is less than 13.24: 2 ones against 1 ten and 3 ones.
The worked example
The lesson works this one step by step: 2.459 ○ 13.24. Then your kid tries one like it on paper.
The steps
- More digits is not more
- Line up the points
- Biggest place first
Helping at home
More digits does not mean more. Line up the points and compare place by place from the biggest; a number with tens beats one with only ones.
If your kid gets stuck
Line up the points first.
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.3b
Compare two decimals to thousandths based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.
Matches standards in 49 statesSee each state's code
- Alabama MA19.5.4b
- Alaska 5.NBT.3.b
- Arizona 5.NBT.A.3.b
- Arkansas 5.NPV.5
- California 5.NBT.A.3
- Colorado 5.NBT.A.3.b
- Connecticut 5.NBT.A.3
- Delaware 5.NBT.A.3
- District of Columbia 5.NBT.A.3
- Florida MA.5.NSO.1.4
- Georgia 5.NR.4.2
- Hawaii 5.NBT.A.3
- Idaho 5.NBT.A.3.b
- Illinois 5.NBT.A.3
- Indiana 5.NS.1
- Iowa 5.NBT.A.3.b
- Kansas 5.NBT.3.b
- Kentucky KY.5.NBT.3.a, KY.5.NBT.3.b
- Louisiana 5.NBT.A.3.b
- Maine 5.NBT.A.3b
- Maryland 5.NOS.A.3.c
- Massachusetts 5.NBT.A.3.b
- Michigan 5.NBT.A.3
- Minnesota 4.1.2.4, 5.1.2.1, 5.1.2.3
- Mississippi 5.NBT.3.b
- Missouri 5.NBT.A.2, 5.NF.A.3
- Montana MT.5.NBT.3.b, 5.D1.1
- Nebraska 5.N.2.b
- Nevada 5.NBT.A.3
- New Hampshire 5.NBT.A.3
- New Jersey 5.NBT.A.3b
- New Mexico 5.NBT.A.3
- New York NY-5.NBT.3.b
- North Carolina NC.5.NBT.3.b
- North Dakota 5.NO.NBT.2
- Ohio 5.NBT.3.b
- Oklahoma 5.N.1.3
- Oregon 5.NBT.A.3
- Pennsylvania CC.2.1.5.B.1
- Rhode Island 5.NBT.A.3.b
- South Carolina 5.NR.1.1
- South Dakota 5.NBT.A.3.b
- Texas 111.7.b.2.B
- Utah 5.NBT.3.b
- Vermont 5.NBT.A.3
- Virginia 4.NS.4e, 5.NS.1d
- Washington 5.NBT.A.3
- West Virginia M.5.6
- Wisconsin M.5.NBT.A.3