“More” can mean subtract: 1st grade math lesson

What this lesson shows

Fixes a mistake

Sam has 4 more than Ana, and Sam has 12. Ana has 12 − 4, not 12 + 4.

The worked example

The lesson works this one step by step: friend has 12 balls, 4 more than you. Then your kid tries one like it on paper.

The steps

Who has more?
Draw both rows
Take away for the smaller one

Helping at home

Ask who has more. If the other person has more, you have fewer: draw their row, then yours shorter, and take away.

If your kid gets stuck

Who has more? Then you have fewer.

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.A.1
Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Common Core 2.OA.A.1
Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

Matches a standard in all 50 states and DCSee each state's code

Alabama MA19.1.1a, MA19.1.1b, MA19.1.1c, MA19.1.1d, MA19.1.6a, MA19.1.6b, MA19.1.6c, MA19.1.6e, MA19.2.1
Alaska 1.OA.1, 2.OA.1
Arizona 1.OA.A.1, 2.OA.A.1
Arkansas 1.CAR.1, 1.CAR.6, 2.CAR.7
California 1.OA.A.1, 2.OA.A.1
Colorado 1.OA.A.1, 2.OA.A.1
Connecticut 1.OA.A.1, 2.OA.A.1
Delaware 1.OA.A.1, 2.OA.A.1
District of Columbia 1.OA.A.1, 2.OA.A.1
Florida MA.1.NSO.2.1, MA.1.AR.1.2, MA.2.AR.1.1
Georgia 1.NR.2.1, 1.NR.2.4, 1.NR.5.1
Hawaii 1.OA.A.1, 2.OA.A.1
Idaho 1.OA.A.1, 1.OA.C.6, 2.OA.A.1
Illinois 1.OA.A.1, 2.OA.A.1
Indiana 1.CA.2, 2.CA.1
Iowa 1.OA.A.1, 1.OA.IA.C.2, 2.OA.A.1
Kansas 1.OA.1, 2.OA.1
Kentucky KY.1.OA.1, KY.2.OA.1
Louisiana 1.OA.A.1, 2.OA.A.1
Maine 1.OA.A.1, 2.OA.A.1
Maryland 1.AT.A.2, 2.AT.A.1, 2.AT.A.2
Massachusetts 1.OA.A.1, 2.OA.A.1
Michigan 1.OA.A.1, 2.OA.A.1
Minnesota 1.1.2.1, 1.2.2.1, 1.2.2.4, 2.1.2.5, 2.2.2.1, 2.2.2.2
Mississippi 1.OA.1, 2.OA.1
Missouri 1.RA.A.1, 1.RA.C.8, 2.NBT.C.11
Montana MT.1.OA.1, MT.1.OA.6, MT.2.OA.1
Nebraska 1.N.4.b, 1.N.5.f, 1.N.5.g, 2.N.5.a, 2.N.5.b
Nevada 1.OA.A.1, 2.OA.A.1
New Hampshire 1.OA.A.1, 2.OA.A.1
New Jersey 1.OA.A.1, 2.OA.A.1
New Mexico 1.OA.A.1, 2.OA.A.1
New York NY-1.OA.1, NY-2.OA.1.a, NY-2.OA.1.b
North Carolina NC.1.OA.9, NC.1.OA.1.a, NC.1.OA.1.b, NC.1.OA.1.c, NC.2.OA.1.a.1, NC.2.OA.1.b.1, NC.2.OA.1.b.2
North Dakota 1.AR.OA.1, 1.AR.OA.4, 1.AR.OA.5, 2.AR.OA.3, 2.AR.OA.4
Ohio 1.OA.1, 2.OA.1
Oklahoma 1.N.2.1, 1.N.2.3, 2.N.2.5, 2.A.2.2
Oregon 1.OA.A.1, 2.OA.A.1
Pennsylvania CC.2.2.1.A.1, CC.2.2.2.A.1
Rhode Island 1.OA.A.1, 2.OA.A.1
South Carolina 1.PAFR.1.4, 1.PAFR.1.3, 2.PAFR.1.3
South Dakota 1.OA.A.1, 2.OA.A.1
Tennessee 1.OA.A.1, 1.OA.C.6, 2.OA.A.1
Texas 111.3.b.3.B, 111.3.b.3.E, 111.3.b.3.F, 111.3.b.5.D, 111.4.b.4.C, 111.4.b.4.D, 111.4.b.7.C
Utah 1.OA.1, 1.OA.6.b, 2.OA.1
Vermont 1.OA.A.1, 2.OA.A.1
Virginia 1.CE.1a, 1.CE.1b, 1.CE.1c, 1.CE.1f, 1.CE.1l, 2.CE.1c
Washington 1.OA.A.1, 2.OA.A.1
West Virginia M.1.1, M.2.1
Wisconsin M.1.OA.A.1, M.2.OA.A.1
Wyoming 1.OA.1, 2.OA.1

“More” can mean subtract