What this lesson shows
4 × 236 as a rectangle split into 4 × 200, 4 × 30, and 4 × 6.
The worked example
The lesson works this one step by step: 4 × 236. Then your kid tries one like it on paper.
The steps
- Break it into hundreds, tens, and ones
- Draw a box for each part
- Multiply each part
- Add the parts
Helping at home
Break the big number into hundreds, tens, and ones, and label one box for each. Say each part in place value: "4 times 3 tens is 12 tens". Add the parts at the end.
If your kid gets stuck
Break it into hundreds, tens, and ones first.
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.5
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. 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 MA19.4.11a
- Alaska 4.NBT.5
- Arizona 4.NBT.B.5 *
- Arkansas 4.CAR.3
- California 4.NBT.B.5
- Colorado 4.NBT.B.5
- Connecticut 4.NBT.B.5
- Delaware 4.NBT.B.5
- District of Columbia 4.NBT.B.5
- Florida MA.4.NSO.2.2, MA.4.NSO.2.3, MA.4.NSO.2.5
- Georgia 4.NR.2.3
- Hawaii 4.NBT.B.5
- Idaho 4.NBT.B.5.a, 4.NBT.B.5.b
- Illinois 4.NBT.B.5
- Indiana 4.CA.1
- Iowa 4.NBT.B.5
- Kansas 4.NBT.5
- Kentucky KY.4.NBT.5
- Louisiana 4.NBT.B.5
- Maine 4.NBT.B.5
- Maryland 4.NOS.B.4, 4.NOS.B.5.a, 4.NOS.B.5.b, 4.NOS.B.5.c, 4.NOS.B.5.d, 4.NOS.B.6.a, 5.NOS.B.4.a, 5.NOS.B.5.a
- Massachusetts 4.NBT.B.5
- Michigan 4.NBT.B.5
- Minnesota 3.1.2.5, 4.1.1.3, 4.1.1.4, 5.1.1.3
- Mississippi 4.NBT.5
- Missouri 4.NBT.A.6
- Montana MT.4.NBT.5, 4.D1.21, 4.D2.4, 4.D2.9
- Nebraska 4.A.1.b, 4.A.1.d
- Nevada 4.NBT.B.5
- New Hampshire 4.NBT.B.5
- New Jersey 4.NBT.B.5
- New Mexico 4.NBT.B.5
- New York NY-4.NBT.5
- North Carolina NC.4.NBT.5
- North Dakota 4.NO.NBT.5
- Ohio 4.NBT.5
- Oklahoma 3.N.2.8, 4.N.2.2, 4.N.2.3, 5.N.2.1
- Oregon 4.NBT.B.5
- Pennsylvania CC.2.1.4.B.2
- Rhode Island 4.NBT.B.5
- South Carolina 4.NR.1.2, 5.PAFR.1.1, 4.PAFR.1.3
- South Dakota 4.NBT.B.5
- Tennessee 4.NBT.B.5
- Texas 111.5.b.4.G, 111.6.b.4.B, 111.6.b.4.C, 111.6.b.4.D, 111.6.b.4.G
- Utah 4.NBT.5
- Vermont 4.NBT.B.5
- Virginia 4.CE.2a, 4.CE.2g.i, 4.CE.2g.ii, 4.CE.2g.iii, 5.CE.1a
- Washington 4.NBT.B.5
- West Virginia M.4.10
- Wisconsin M.4.NBT.B.5, M.4.NBT.A.3
- Wyoming 4.NBT.5a, 4.NBT.5b, 4.NBT.5c, 4.NBTP.5.A, 4.NBTP.5.B, 4.NBTP.5.C