What this lesson shows
365 as 3 flats, 6 rods, and 5 units: 300 + 60 + 5, three hundred sixty-five.
The worked example
The lesson works this one step by step: 365. Then your kid tries one like it on paper.
The steps
- Each digit has a place
- Flats, rods, and cubes
- Expanded form adds the parts
- Word form says it
Helping at home
Name each digit by its place: hundreds, tens, ones. Draw a flat for each hundred, a rod for each ten, a cube for each one. Then add what each digit is worth, and write the number in words.
If your kid gets stuck
Hundreds, tens, then ones.
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 2.NBT.A.3
Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
Matches standards in 49 statesSee each state's code
- Alabama MA19.2.8
- Alaska 2.NBT.3
- Arizona 2.NBT.A.3
- Arkansas 2.NPV.3
- California 2.NBT.A.3
- Colorado 2.NBT.A.3
- Connecticut 2.NBT.A.3
- Delaware 2.NBT.A.3
- District of Columbia 2.NBT.A.3
- Florida MA.2.NSO.1.1
- Hawaii 2.NBT.A.3
- Idaho 2.NBT.A.3
- Illinois 2.NBT.A.3
- Indiana 2.NS.2
- Iowa 2.NBT.A.3
- Kansas 2.NBT.3
- Kentucky KY.2.NBT.3
- Louisiana 2.NBT.A.3
- Maine 2.NBT.A.3
- Maryland 2.NOS.A.3
- Massachusetts 2.NBT.A.3
- Michigan 2.NBT.A.3
- Minnesota 2.1.1.1
- Mississippi 2.NBT.3
- Missouri 2.NBT.A.4
- Montana MT.2.NBT.3
- Nebraska 2.N.3.a
- Nevada 2.NBT.A.3
- New Hampshire 2.NBT.A.3
- New Jersey 2.NBT.A.3
- New Mexico 2.NBT.A.3
- New York NY-2.NBT.3
- North Carolina NC.2.NBT.3
- North Dakota 2.NO.CC.3
- Ohio 2.NBT.3
- Oklahoma 2.N.1.1, 2.N.1.3
- Oregon 2.NBT.A.3
- Pennsylvania CC.2.1.2.B.2
- Rhode Island 2.NBT.A.3
- South Carolina 2.NR.1.1
- South Dakota 2.NBT.A.3
- Tennessee 2.NBT.A.3
- Texas 111.4.b.2.B
- Utah 2.NBT.3
- Vermont 2.NBT.A.3
- Virginia 2.NS.2b
- Washington 2.NBT.A.3
- West Virginia M.2.8
- Wisconsin M.2.NBT.A.3
More in this unit
- What is a digit worth?
- Zero holds the tens place
- Many names for one number
- New names, same number
- Comparing three-digit numbers
- Plot and order on a number line
- Same digits, different places
- Read the line's labels
- Ten more, a hundred more
- Ten more past a hundred
- Adding to 1,000
- Subtracting to 1,000
- Subtraction does not turn around
- Trade only when you need to
- Skip-count past a hundred
- Counting by 25s
- Which estimate makes sense?