What this lesson shows
Count by 5s, 10s, and 100s from any number, and say the next hundred: 380, 390, 400, 410.
The worked example
The lesson works this one step by step: Count by 10s from 370. Then your kid tries one like it on paper.
The steps
- Count by 10s
- Count by 5s
- Count by 100s
- Say the new hundred
Helping at home
Count on by the same step each time. When the count passes a hundred, 10 tens make a new hundred, so say it: 390, 400, 410. By 100s, only the hundreds digit changes.
If your kid gets stuck
Watch for the next hundred.
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.2
Count within 1000; skip-count by 5s, 10s, and 100s.
Matches standards in 49 statesSee each state's code
- Alabama MA19.2.7
- Alaska 2.NBT.2
- Arizona 2.NBT.A.2
- Arkansas 1.NPV.2, 2.NPV.1
- California 2.NBT.A.2
- Colorado 2.NBT.A.2
- Connecticut 2.NBT.A.2
- Delaware 2.NBT.A.2
- District of Columbia 2.NBT.A.2
- Georgia 2.NR.1.2
- Hawaii 2.NBT.A.2
- Idaho 2.NBT.A.2
- Illinois 2.NBT.A.2
- Indiana 2.NS.1
- Iowa 2.NBT.A.2
- Kansas 2.NBT.2
- Kentucky KY.2.NBT.2
- Louisiana 2.NBT.A.2
- Maine 2.NBT.A.2
- Maryland 2.NOS.A.2.a
- Massachusetts 2.NBT.A.2
- Michigan 2.NBT.A.2
- Minnesota 2.2.1.1
- Mississippi 2.NBT.2
- Missouri 1.NS.A.4, 2.NBT.A.3, 2.RA.B.2.a
- Montana MT.2.NBT.2
- Nebraska 1.N.2.d, 2.N.2.a
- Nevada 2.NBT.A.2
- New Hampshire 2.NBT.A.2
- New Jersey 2.NBT.A.2
- New Mexico 2.NBT.A.2
- New York NY-2.NBT.2
- North Carolina NC.2.NBT.2
- North Dakota 1.NO.CC.5, 2.NO.CC.1, 2.NO.CC.2, 2.NO.CC.4
- Ohio 2.NBT.2
- Oklahoma 1.N.1.4, 1.N.1.5
- Oregon 2.NBT.A.2
- Pennsylvania CC.2.1.2.B.2
- Rhode Island 2.NBT.A.2
- South Carolina 2.NR.2.1
- South Dakota 2.NBT.A.2
- Tennessee 2.NBT.A.2
- Texas 111.3.b.5.B
- Utah 2.NBT.2
- Vermont 2.NBT.A.2
- Virginia 2.NS.1b, 2.NS.1c, 2.NS.1d
- Washington 2.NBT.A.2
- West Virginia M.2.7
- Wisconsin M.2.NBT.A.2
More in this unit
- Numbers to 1,000 three ways
- 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
- Counting by 25s
- Which estimate makes sense?