What this lesson shows
76 = 11 + 65 as a story: 65 kids at recess, 11 more come out, 76 in all.
The worked example
The lesson works this one step by step: 76 = 11 + 65. Then your kid tries one like it on paper.
The steps
- Find the parts and the whole
- Start with one part
- Add the other part
- End with the whole
Helping at home
Find the parts and the whole first. Start the story with one part, bring in the other, and end with the whole. Then check it matches the equation.
If your kid gets stuck
Which numbers are the parts?
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.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 standards in 50 statesSee each state's code
- Alabama MA19.2.1
- Alaska 2.OA.1
- Arizona 2.OA.A.1
- Arkansas 2.CAR.7
- California 2.OA.A.1
- Colorado 2.OA.A.1
- Connecticut 2.OA.A.1
- Delaware 2.OA.A.1
- District of Columbia 2.OA.A.1
- Florida MA.2.AR.1.1
- Hawaii 2.OA.A.1
- Idaho 2.OA.A.1
- Illinois 2.OA.A.1
- Indiana 2.CA.1
- Iowa 2.OA.A.1
- Kansas 2.OA.1
- Kentucky KY.2.OA.1
- Louisiana 2.OA.A.1
- Maine 2.OA.A.1
- Maryland 2.AT.A.1, 2.AT.A.2
- Massachusetts 2.OA.A.1
- Michigan 2.OA.A.1
- Minnesota 2.1.2.5, 2.2.2.1, 2.2.2.2
- Mississippi 2.OA.1
- Missouri 2.NBT.C.11
- Montana MT.2.OA.1
- Nebraska 2.N.5.a, 2.N.5.b
- Nevada 2.OA.A.1
- New Hampshire 2.OA.A.1
- New Jersey 2.OA.A.1
- New Mexico 2.OA.A.1
- New York NY-2.OA.1.a, NY-2.OA.1.b
- North Carolina NC.2.OA.1.a.1, NC.2.OA.1.b.1, NC.2.OA.1.b.2
- North Dakota 2.AR.OA.3, 2.AR.OA.4
- Ohio 2.OA.1
- Oklahoma 2.N.2.5, 2.A.2.2
- Oregon 2.OA.A.1
- Pennsylvania CC.2.2.2.A.1
- Rhode Island 2.OA.A.1
- South Carolina 2.PAFR.1.3
- South Dakota 2.OA.A.1
- Tennessee 2.OA.A.1
- Texas 111.4.b.4.C, 111.4.b.4.D, 111.4.b.7.C
- Utah 2.OA.1
- Vermont 2.OA.A.1
- Virginia 2.CE.1c
- Washington 2.OA.A.1
- West Virginia M.2.1
- Wisconsin M.2.OA.A.1
- Wyoming 2.OA.1