What this lesson shows
Fixes a mistake
156 ÷ 4 starts with 15, and the answer's first digit goes over the 5.
The worked example
The lesson works this one step by step: 156 ÷ 4. Then your kid tries one like it on paper.
The steps
- First digit big enough?
- No? Use two digits.
- Write over the last digit used.
Helping at home
Before dividing, ask "Is the first digit big enough?" If not, use the first two digits, and write the answer’s first digit over the second one. Nothing goes over the first digit.
If your kid gets stuck
First ask: is the first digit big enough?
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 4.NBT.B.6
Find whole-number quotients and remainders with up to four-digit dividends and one-digit divisors, using strategies based on place value, the properties of operations, and/or the relationship between multiplication and division. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Matches a standard in all 50 states and DCSee each state's code
- Alabama MA19.4.12a
- Alaska 4.NBT.6
- Arizona 4.NBT.B.6
- Arkansas 4.CAR.4
- California 4.NBT.B.6
- Colorado 4.NBT.B.6
- Connecticut 4.NBT.B.6
- Delaware 4.NBT.B.6
- District of Columbia 4.NBT.B.6
- Florida MA.4.NSO.2.4, MA.4.NSO.2.5
- Georgia 4.NR.2.4
- Hawaii 4.NBT.B.6
- Idaho 4.NBT.B.6.a, 4.NBT.B.6.b
- Illinois 4.NBT.B.6
- Indiana 4.CA.2
- Iowa 4.NBT.B.6
- Kansas 4.NBT.6
- Kentucky KY.4.NBT.6
- Louisiana 4.NBT.B.6
- Maine 4.NBT.B.6
- Maryland 4.NOS.B.5.a, 4.NOS.B.6.a, 4.NOS.B.6.b, 4.NOS.B.6.c, 4.NOS.B.6.d, 5.NOS.B.4.a, 5.NOS.B.5.a
- Massachusetts 4.NBT.B.6
- Michigan 4.NBT.B.6
- Minnesota 4.1.1.4, 4.1.1.6, 5.1.1.3
- Mississippi 4.NBT.6
- Missouri 4.NBT.A.7
- Montana MT.4.NBT.6, 4.D1.8, 4.D1.21
- Nebraska 4.A.1.c, 4.A.1.d
- Nevada 4.NBT.B.6
- New Hampshire 4.NBT.B.6
- New Jersey 4.NBT.B.6
- New Mexico 4.NBT.B.6
- New York NY-4.NBT.6
- North Carolina NC.4.NBT.6
- North Dakota 4.NO.NBT.6
- Ohio 4.NBT.6
- Oklahoma 4.N.2.3, 4.N.2.5, 5.N.2.1
- Oregon 4.NBT.B.6
- Pennsylvania CC.2.1.4.B.2
- Rhode Island 4.NBT.B.6
- South Carolina 4.PAFR.1.4, 4.NR.1.2
- South Dakota 4.NBT.B.6
- Tennessee 4.NBT.B.6
- Texas 111.6.b.4.B, 111.6.b.4.E, 111.6.b.4.F, 111.6.b.4.G
- Utah 4.NBT.6
- Vermont 4.NBT.B.6
- Virginia 4.CE.2a, 4.CE.2i, 5.CE.1a
- Washington 4.NBT.B.6
- West Virginia M.4.11
- Wisconsin M.4.NBT.A.3, M.4.NBT.B.6
- Wyoming 4.NBT.6