What this lesson shows
Fixes a mistake
"Three thousand four" is 3,004, not 30,004. Zeros hold the empty places.
The worked example
The lesson works this one step by step: 3,004. Then your kid tries one like it on paper.
The steps
- Thousands, then a comma
- Three places after it
- Write what is said
- A 0 in each empty place
Helping at home
Write the thousands and the comma first. After the comma come exactly three places: hundreds, tens, ones. Put each digit you hear in its place, then a 0 in every place nobody says. Read the number back to check it.
If your kid gets stuck
After the comma, draw three blanks 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