Count on to add, back to subtract: 1st grade math lesson

What this lesson shows

Start at 8 on a number path and count on 3 to add 3. Start at 11 and count back 3 to take away 3.

The worked example

The lesson works this one step by step: 8 + 3 = □. Then your kid tries one like it on paper.

The steps

Start at the first number
Plus: count on
Minus: count back
Stop on the answer

Helping at home

Start at the first number. For plus, count on one number for each; for minus, count back one number for each. Draw a number path from 1 to 20 if it helps.

If your kid gets stuck

Start at the first number. Plus counts on, minus counts back.

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.

See how Lux works

Standards

Common Core 1.OA.C.5
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).

Matches standards in 42 statesSee each state's code

Alabama MA19.1.5
Alaska 1.OA.5
Arizona 1.OA.C.5
Arkansas 1.CAR.2
California 1.OA.C.5
Colorado 1.OA.C.5
Connecticut 1.OA.C.5
Delaware 1.OA.C.5
District of Columbia 1.OA.C.5
Florida MA.1.NSO.2.2
Hawaii 1.OA.C.5
Idaho 1.OA.C.5, 1.OA.C.6
Illinois 1.OA.C.5
Iowa 1.OA.C.5, 1.OA.IA.C.1.a
Kansas 1.OA.5
Kentucky KY.1.OA.5, KY.1.OA.6.b
Louisiana 1.OA.C.5
Maine 1.OA.C.5
Massachusetts 1.OA.C.5
Michigan 1.OA.C.5
Minnesota 1.1.2.3
Mississippi 1.OA.5
Missouri 1.RA.C.7
Montana MT.1.OA.5, MT.1.OA.7
Nebraska 1.N.2.b, 1.N.4.a
Nevada 1.OA.C.5
New Hampshire 1.OA.C.5
New Jersey 1.OA.C.5
New Mexico 1.OA.C.5
New York NY-1.OA.5, NY-1.OA.6.a
North Dakota 1.AR.OA.2, 1.AR.OA.3
Ohio 1.OA.5
Oregon 1.OA.C.5, 1.OA.C.6
Rhode Island 1.OA.C.5
South Dakota 1.OA.C.5
Tennessee 1.OA.C.5
Utah 1.OA.5
Vermont 1.OA.C.5
Virginia 1.CE.1d, 1.CE.1e
Washington 1.OA.C.5
West Virginia M.1.5
Wisconsin M.1.OA.C.5

Count on to add, back to subtract