What this lesson shows
9 − 3 on a number line: 8, 7, 6. Three jumps back land on 6.
The worked example
The lesson works this one step by step: 9 − 3. Then your kid tries one like it on paper.
The steps
- Start at the number
- Jump back one at a time
- Count the jumps
- Where you land is the answer
Helping at home
Read each box aloud. Your kid puts a finger on the first number, jumps back one mark for each one taken away, and writes where they land.
If your kid gets stuck
Start at the first number. One jump back for each one taken away.
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 K.OA.A.2
Solve addition and subtraction word problems, and add and subtract within 10, e.g., by using objects or drawings to represent the problem.
Matches standards in 50 statesSee each state's code
- Alabama MA19.K.9
- Alaska K.OA.2
- Arizona K.OA.A.2, K.NBT.B.2
- Arkansas K.CAR.1., K.CAR.4, K.CAR.5
- California K.OA.A.2
- Colorado K.OA.A.2
- Connecticut K.OA.A.2
- Delaware K.OA.A.2
- District of Columbia K.OA.A.2
- Florida MA.K.NSO.3.1, MA.K.NSO.3.2, MA.K.AR.1.3
- Georgia K.NR.5.2, K.NR.5.3
- Hawaii K.OA.A.2
- Idaho K.OA.A.2, K.OA.A.5
- Illinois K.OA.A.2
- Indiana K.CA.1
- Iowa K.OA.A.2, K.OA.A.5
- Kansas K.OA.2
- Kentucky KY.K.OA.2
- Louisiana K.OA.A.2
- Maine K.OA.A.2
- Maryland K.AT.A.2
- Massachusetts K.OA.A.2
- Michigan K.OA.A.2
- Minnesota K.1.2.1
- Mississippi K.OA.2, K.OA.5a, K.OA.5b
- Missouri K.RA.A.1
- Montana MT.K.OA.2, MT.K.OA.5
- Nebraska K.N.4.a, K.N.4.d, K.N.4.e
- Nevada K.OA.A.2
- New Hampshire K.OA.A.2
- New Jersey K.OA.A.2
- New Mexico K.OA.A.2
- New York NY-K.OA.2.a, NY-K.OA.2.b
- North Carolina NC.K.OA.2.a, NC.K.OA.2.b
- North Dakota K.AR.OA.4, K.AR.OA.5
- Ohio K.OA.2
- Oregon K.OA.A.2, K.OA.A.5
- Pennsylvania CC.2.2.K.A.1
- Rhode Island K.OA.A.2
- South Carolina K.PAFR.1.4, K.PAFR.1.1
- South Dakota K.OA.A.2.a, K.OA.A.2.b
- Tennessee K.OA.A.2, K.OA.A.5
- Texas 111.2.b.3.B, 111.2.b.3.C
- Utah K.OA.2
- Vermont K.OA.A.2
- Virginia K.CE.1f
- Washington K.OA.A.2
- West Virginia M.K.9, M.K.12
- Wisconsin M.K.OA.A.2
- Wyoming K.OA.2