What this lesson shows
Compare from the biggest place down until the digits differ, on a scaled number line.
The worked example
The lesson works this one step by step: 45,382 ○ 45,917. Then your kid tries one like it on paper.
The steps
- Line them up
- Compare from the left
- Stop where they differ
- Open side to the bigger
Helping at home
Line the numbers up from the ones. Count the digits first: more digits is bigger. With the same number of digits, compare from the biggest place until two digits differ. The open side of the sign faces the bigger number.
If your kid gets stuck
Line them up from the ones 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 4.NBT.A.2
Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.
Matches a standard in all 50 states and DCSee each state's code
- Alabama MA19.4.7, MA19.4.8
- Alaska 4.NBT.2
- Arizona 4.NBT.A.2
- Arkansas 4.NPV.2, 4.NPV.4
- California 4.NBT.A.2
- Colorado 4.NBT.A.2
- Connecticut 4.NBT.A.2
- Delaware 4.NBT.A.2
- District of Columbia 4.NBT.A.2
- Florida MA.4.NSO.1.2, MA.4.NSO.1.3
- Georgia 4.NR.1.1, 4.NR.1.3
- Hawaii 4.NBT.A.2
- Idaho 4.NBT.A.2
- Illinois 4.NBT.A.2
- Indiana 4.NS.1
- Iowa 4.NBT.A.2
- Kansas 4.NBT.2
- Kentucky KY.4.NBT.2.a, KY.4.NBT.2.b
- Louisiana 4.NBT.A.2
- Maine 4.NBT.A.2
- Maryland 4.NOS.A.1.a, 4.NOS.A.1.c
- Massachusetts 4.NBT.A.2
- Michigan 4.NBT.A.2
- Minnesota 3.1.1.1, 3.1.1.2, 3.1.1.5
- Mississippi 4.NBT.2
- Missouri 3.NBT.A.2, 4.NBT.A.2, 4.NBT.A.3
- Montana MT.4.NBT.2, 4.D1.4, 4.D1.10
- Nebraska 4.N.1.a, 4.N.1.b
- Nevada 4.NBT.A.2
- New Hampshire 4.NBT.A.2
- New Jersey 4.NBT.A.2
- New Mexico 4.NBT.A.2
- New York NY-4.NBT.2.a, NY-4.NBT.2.b
- North Carolina NC.4.NBT.2, NC.4.NBT.7
- North Dakota 4.NO.CC.1, 4.NO.NBT.2
- Ohio 4.NBT.2
- Oklahoma 3.N.1.1, 3.N.1.2, 3.N.1.4, 4.N.1.1, 4.N.1.2, 4.N.1.4
- Oregon 4.NBT.A.2
- Pennsylvania CC.2.1.4.B.1
- Rhode Island 4.NBT.A.2
- South Carolina 3.NR.1.3, 4.NR.1.3, 4.NR.1.1, 3.NR.1.1
- South Dakota 4.NBT.A.2.a, 4.NBT.A.2.b
- Tennessee 4.NBT.A.2, 3.NBT.A.4
- Texas 111.5.b.2.A, 111.5.b.2.D, 111.6.b.2.B, 111.6.b.2.C
- Utah 4.NBT.2
- Vermont 4.NBT.A.2
- Virginia 3.NS.1a, 3.NS.1b, 4.NS.1a, 4.NS.1b, 4.NS.1c, 4.NS.2a, 4.NS.2b
- Washington 4.NBT.A.2
- West Virginia M.4.7
- Wisconsin M.4.NBT.A.2
- Wyoming 4.NBT.2