Adding by jumps: 2nd grade math lesson

What this lesson shows

41 + 23 on a number line: two jumps of ten to 61, then three ones to 64.

The worked example

The lesson works this one step by step: 41 + 23 = □. Then your kid tries one like it on paper.

The steps

Split into tens and ones
Start at the first number
Jump the tens
Jump the ones

Helping at home

Split the second number into tens and ones. Start at the first number on a line, jump 10 for each ten, then jump the ones.

If your kid gets stuck

How many tens? How many ones?

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 2.NBT.B.5
Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
Common Core 2.MD.B.6
Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2, ..., and represent whole-number sums and differences within 100 on a number line diagram.

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

Alabama MA19.2.10, MA19.2.22
Alaska 2.NBT.5, 2.MD.6
Arizona 2.NBT.B.5, 2.MD.B.6
Arkansas 2.CAR.2, 2.CAR.4
California 2.NBT.B.5, 2.MD.B.6
Colorado 2.NBT.B.5, 2.MD.B.6
Connecticut 2.NBT.B.5, 2.MD.B.6
Delaware 2.NBT.B.5, 2.MD.B.6
District of Columbia 2.NBT.B.5, 2.MD.B.6
Florida MA.2.NSO.2.3
Georgia 2.NR.2.3, 2.NR.2.4, 2.MDR.5.5
Hawaii 2.NBT.B.5, 2.MD.B.6
Idaho 2.NBT.B.5, 2.MD.B.6
Illinois 2.NBT.B.5, 2.MD.B.6
Indiana 2.CA.3
Iowa 2.NBT.B.5, 2.MD.B.6
Kansas 2.NBT.5, 2.MD.6
Kentucky KY.2.NBT.5, KY.2.MD.6
Louisiana 2.NBT.B.5, 2.MD.B.6
Maine 2.NBT.B.5, 2.MD.B.6
Maryland 2.NOS.B.6.c, 2.NOS.C.8.a, 2.NOS.C.8.b, 1.NOS.B.4, 1.NOS.B.6, 2.NOS.A.5, 2.NOS.C.7
Massachusetts 2.NBT.B.5, 2.MD.B.6
Michigan 2.NBT.B.5, 2.MD.B.6
Minnesota 2.1.2.3, 2.1.2.4
Mississippi 2.NBT.5, 2.MD.6
Missouri 2.NBT.B.6, 2.NBT.B.9, 2.GM.C.9
Montana MT.1.NBT.6, MT.2.NBT.5, MT.2.MD.6
Nebraska 1.N.4.g, 2.N.4.b, 2.G.4.a
Nevada 2.NBT.B.5, 2.MD.B.6
New Hampshire 2.NBT.B.5, 2.MD.B.6
New Jersey 2.NBT.B.5, 2.M.B.6
New Mexico 2.NBT.B.5, 2.MD.B.6
New York NY-2.NBT.5, NY-2.MD.6
North Carolina NC.2.NBT.5.a, NC.2.NBT.5.c, NC.2.MD.6
North Dakota 2.NO.NBT.3, 2.NO.NBT.4, 2.AR.OA.2
Ohio 2.NBT.5, 2.MD.6
Oklahoma 2.N.2.4, 2.N.1.2, 2.A.2.1
Oregon 2.NBT.B.5, 2.GM.C.9
Pennsylvania CC.2.1.2.B.3, CC.2.4.2.A.6
Rhode Island 2.NBT.B.5, 2.MD.B.6
South Carolina 2.PAFR.1.4, 2.PAFR.1.1
South Dakota 2.NBT.B.5, 2.MD.B.6
Tennessee 1.NBT.C.7, 2.NBT.B.5, 2.OA.B.2, 2.MD.B.6
Texas 111.4.b.4.B, 111.4.b.2.E, 111.4.b.2.F, 111.4.b.9.C
Utah 2.NBT.5, 2.MD.6
Vermont 2.NBT.B.5, 2.MD.B.6
Virginia 2.CE.1a, 2.CE.1b, 2.NS.2f
Washington 2.NBT.B.5, 2.MD.B.6
West Virginia M.2.10, M.2.20
Wisconsin M.2.NBT.B.5, M.2.MD.B.6
Wyoming 2.NBT.5

Adding by jumps