Kindergarten to Grade 5 · Grade 4
Grade 4 mathematics.
Multi-digit arithmetic, fraction operations, decimals, angles.
126 skills · 153 lessons · 7 modules
Placed by what they can do, not their year · Mapped to Florida B.E.S.T. and Common Core · 30 days free, no card · What it costs
- Place Value to a Million, Rounding, Adding and Subtracting6 chapters
- Converting Metric Units1 chapter
- Multiplying and Dividing Bigger Numbers8 chapters
- Lines, Angles and the Shapes They Make4 chapters
- Equal Fractions, Comparing Them and Computing with Them7 chapters
- Tenths, Hundredths and the Decimal Point4 chapters
- Conversion Tables, Mixed Units and the Year in Review4 chapters


The year, in order
What Grade 4 covers, module by module.
Lessons move from objects to pictures to symbols. Open a module to see them.
Module 1
Place Value to a Million, Rounding, Adding and Subtracting
Place Value to a Million, Rounding, Adding and Subtracting: 6 chapters · 19 lessons
Numbers to a million, read by periods and compared by place, then rounded and then added and subtracted with the estimate as the check.
Numbers to a million4 lessons
- Times as many
- Ten times the value
- Naming numbers to a million
- Four ways to write one number
Florida B.E.S.T.: MA.4.NSO.1.1 · MA.4.NSO.1.2 · MA.4.AR.1.1
Common Core: 4.OA.A.1 · 4.OA.A.2 · 4.NBT.A.1 · 4.NBT.A.2
Comparing large numbers2 lessons
- Which is greater
- A thousand more, a thousand less
Florida B.E.S.T.: MA.4.NSO.1.1 · MA.4.NSO.1.3
Common Core: 4.NBT.A.2 · 4.NBT.A.1
Rounding4 lessons
- Rounding to the thousand
- Rounding to any place
- Rounding without the line
- Rounding that means something
Florida B.E.S.T.: MA.4.NSO.1.4
Common Core: 4.NBT.A.3
The addition algorithm2 lessons
- Adding to a million
- Adding, then checking
Florida B.E.S.T.: MA.3.NSO.2.1 · MA.3.AR.1.2 · MA.4.NSO.1.4
Common Core: 4.NBT.B.4 · 4.OA.A.3
The subtraction algorithm4 lessons
- Subtracting with one exchange
- Several exchanges in a row
- Subtracting across zeros
- Two-step subtraction problems
Florida B.E.S.T.: MA.3.NSO.2.1 · MA.3.AR.1.2
Common Core: 4.NBT.B.4 · 4.OA.A.3
Problems, and the check3 lessons
- How many more
- Problems in more than one step
- Working back from the diagram
Florida B.E.S.T.: MA.3.NSO.2.1 · MA.3.AR.1.2 · MA.4.NSO.1.4 · MA.4.AR.1.1 · MA.5.AR.1.1
Common Core: 4.OA.A.3 · 4.NBT.B.4 · 4.NBT.A.3 · 4.OA.A.2 · 4.OA.A.1
Module 2
Converting Metric Units
Converting Metric Units: 1 chapter · 5 lessons
The metric ladder read as a place value chart, and measurements added across two units.
The metric ladder5 lessons
- Kilometres and metres
- Kilograms and grams
- Litres and millilitres
- Units are places
- Measurement problems in steps
Florida B.E.S.T.: MA.3.M.1.2 · MA.4.NSO.1.1 · MA.4.M.1.2 · MA.4.M.2.1
Common Core: 4.MD.A.1 · 4.NBT.A.1 · 4.MD.A.2 · 4.OA.A.3
Module 3
Multiplying and Dividing Bigger Numbers
Multiplying and Dividing Bigger Numbers: 8 chapters · 36 lessons
The area model as the record of every partial product, long division as the same model read the other way, and factors and multiples underneath both.
Area and perimeter formulas3 lessons
- The two formulas
- Comparing with area
- Working back from area
Florida B.E.S.T.: MA.4.AR.1.1 · MA.4.GR.2.1
Common Core: 4.MD.A.3 · 4.OA.A.2
Multiplying by ten, a hundred, a thousand3 lessons
- Ten, a hundred, a thousand
- Multiplying multiples of ten
- Tens times tens
Florida B.E.S.T.: MA.3.NSO.2.3 · MA.4.NSO.1.1 · MA.4.NSO.2.3 · MA.4.NSO.2.5
Common Core: 4.NBT.B.5 · 4.NBT.A.1
Multiplying by one digit6 lessons
- Multiplying with disks
- Three and four digits with disks
- Four digits by one
- From the model to the method
- Two-step multiplication problems
- Choosing the operation
Florida B.E.S.T.: MA.3.AR.1.2 · MA.4.NSO.2.2 · MA.4.NSO.2.3 · MA.4.AR.1.1 · MA.5.NSO.2.1
Common Core: 4.NBT.B.5 · 4.OA.A.2 · 4.OA.A.3
Division with remainders8 lessons
- Something left over
- The remainder in the picture
- Dividing with disks
- Breaking a ten to share it
- Quotients and remainders
- What the remainder means
- Division on the area model
- The area model with a remainder
Florida B.E.S.T.: MA.4.NSO.2.4 · MA.4.AR.1.1
Common Core: 4.NBT.B.6 · 4.OA.A.3
Factors and multiples4 lessons
- Factor pairs
- Testing for a factor
- Multiples
- Prime and composite
Florida B.E.S.T.: MA.3.AR.3.2 · MA.4.AR.3.1
Common Core: 4.OA.B.4
Equal, with any operation1 lesson
- True with all four operations
Florida B.E.S.T.: MA.4.AR.2.1
Common Core: 3.OA.B.5 · 1.OA.D.7
Long division8 lessons
- Dividing multiples of ten
- Three digits, decomposing hundreds
- Three digits, written down
- Four digits
- Zeros in the quotient
- Which division is this
- Bigger divisors
- The model and the algorithm
Florida B.E.S.T.: MA.4.NSO.2.4 · MA.4.NSO.2.5 · MA.4.AR.1.1
Common Core: 4.NBT.B.6 · 4.NBT.A.1 · 4.OA.A.3
Two digits by two digits3 lessons
- Multiples of ten by two digits
- Four partial products
- Two digits by two digits
Florida B.E.S.T.: MA.4.NSO.2.2 · MA.4.NSO.2.3 · MA.4.NSO.2.5
Common Core: 4.NBT.B.5
Module 4
Lines, Angles and the Shapes They Make
Lines, Angles and the Shapes They Make: 4 chapters · 16 lessons
An angle as a turn, measured with both protractor scales printed, added to a benchmark, and used to classify every figure in the year.
Lines and angles4 lessons
- Points, lines and rays
- Bigger or smaller than a corner
- Perpendicular lines
- Parallel lines
Florida B.E.S.T.: MA.3.GR.1.1 · MA.4.GR.1.1
Common Core: 4.G.A.1 · 4.MD.C.5
Measuring angles4 lessons
- One degree
- Long arms, small angle
- Measuring and drawing angles
- Angles as turns
Florida B.E.S.T.: MA.4.GR.1.1 · MA.4.GR.1.2
Common Core: 4.MD.C.5 · 4.MD.C.6
Angles that make angles3 lessons
- Angles made of angles
- Adding angle measures
- The angle you cannot measure
Florida B.E.S.T.: MA.4.GR.1.2 · MA.4.GR.1.3
Common Core: 4.MD.C.7 · 4.OA.A.3
Two-dimensional figures5 lessons
- Lines of symmetry
- Naming a triangle twice
- Building a triangle to order
- The quadrilateral family
- Building a quadrilateral to order
Florida B.E.S.T.: MA.2.GR.1.3 · MA.3.GR.1.2 · MA.3.GR.1.3 · MA.5.GR.1.1
Common Core: 4.G.A.3 · 4.G.A.2
Module 5
Equal Fractions, Comparing Them and Computing with Them
Equal Fractions, Comparing Them and Computing with Them: 7 chapters · 31 lessons
A fraction decomposed into its units, renamed by cutting, compared against a half, then added, subtracted and multiplied — the longest module in the year.
Taking a fraction apart5 lessons
- A fraction is a count of pieces
- Written as a multiplication
- Cutting the pieces smaller
- One piece, cut both ways
- Equivalence you can see
Florida B.E.S.T.: MA.4.FR.1.3 · MA.4.FR.2.1 · MA.4.FR.2.4
Common Core: 4.NF.B.3 · 4.NF.B.4 · 4.NF.A.1
Equivalence, written down3 lessons
- Multiplying both parts
- Dividing both parts
- Saying why
Florida B.E.S.T.: MA.4.FR.1.3
Common Core: 4.NF.A.1 · 4.NF.B.3
Comparing fractions2 lessons
- More than half, or less
- Finding a unit they share
Florida B.E.S.T.: MA.4.FR.1.3 · MA.4.FR.1.4
Common Core: 4.NF.A.2 · 4.NF.A.1
Adding and subtracting5 lessons
- Adding pieces of the same size
- Taking from one whole
- Three or more
- Fractions in a story
- Units that are related
Florida B.E.S.T.: MA.4.FR.1.3 · MA.4.FR.2.2 · MA.4.AR.1.2 · MA.5.FR.2.1
Common Core: 4.NF.B.3 · 4.MD.A.2 · 4.NF.A.1 · 5.NF.A.1
Past one whole6 lessons
- A whole number and a fraction
- Counting past one
- Two ways to write the same amount
- Comparing past one
- Common units past one
- Line plots in fractions
Florida B.E.S.T.: MA.4.FR.1.4 · MA.4.FR.2.1 · MA.4.FR.2.2 · MA.4.FR.2.4 · MA.4.DP.1.1 · MA.4.DP.1.3
Common Core: 4.NF.B.3 · 4.NF.B.4 · 4.NF.A.2 · 4.NF.A.1 · 4.MD.B.4
Mixed numbers, added and taken away5 lessons
- About how much
- Adding a fraction to a mixed number
- Adding mixed numbers
- Taking a fraction from a mixed number
- Subtracting mixed numbers
Florida B.E.S.T.: MA.4.FR.2.2 · MA.4.AR.1.2
Common Core: 5.NF.A.2 · 4.MD.A.2 · 4.NF.B.3
Multiplying a fraction5 lessons
- A whole number times a fraction
- A whole number times a mixed number
- Times as many, with fractions
- Fraction multiplication in a story
- A pattern worth finding
Florida B.E.S.T.: MA.4.FR.2.2 · MA.4.FR.2.4 · MA.4.AR.1.3 · MA.4.AR.3.2 · MA.4.DP.1.3 · MA.5.FR.2.2
Common Core: 4.NF.B.4 · 4.NF.B.3 · 4.OA.A.2 · 4.MD.B.4 · 4.OA.C.5
Module 6
Tenths, Hundredths and the Decimal Point
Tenths, Hundredths and the Decimal Point: 4 chapters · 17 lessons
Tenths and hundredths as places on the chart, compared and added as fractions rather than as strings of digits.
Tenths3 lessons
- One whole, ten pieces
- More than one whole
- Tens, ones and tenths
Florida B.E.S.T.: MA.4.FR.1.2
Common Core: 4.NF.C.6 · 4.NF.B.3
Hundredths5 lessons
- Hundredths
- A tenth is ten hundredths
- Two decimal places
- Expanded form with decimals
- The same number, different units
Florida B.E.S.T.: MA.4.FR.1.1 · MA.4.FR.1.2 · MA.5.NSO.1.2
Common Core: 4.NF.C.6 · 4.NF.C.5 · 4.NF.A.1 · 4.NBT.A.1 · 5.NBT.A.3a
Comparing decimals4 lessons
- Which decimal is bigger
- Decimals on the number line
- Putting decimals in order
- One tenth more, one hundredth less
Florida B.E.S.T.: MA.4.NSO.1.5 · MA.4.NSO.2.6
Common Core: 4.NF.C.7 · 4.NF.A.2 · 4.NF.C.6
Adding decimals, and money5 lessons
- Adding tenths and hundredths
- Adding by converting to fractions
- Adding measurements in decimals
- Money as decimals
- Problems with money
Florida B.E.S.T.: MA.3.M.1.2 · MA.4.NSO.2.7 · MA.4.FR.2.3 · MA.4.M.2.2
Common Core: 4.NF.C.5 · 4.NF.B.3 · 4.MD.A.2 · 4.NF.C.6
Module 7
Conversion Tables, Mixed Units and the Year in Review
Conversion Tables, Mixed Units and the Year in Review: 4 chapters · 14 lessons
Conversion tables built rather than recalled, mixed units traded, and the year closed on composite area.
Conversion tables3 lessons
- Building a conversion table
- Units of time
- Comparing across units
Florida B.E.S.T.: MA.4.AR.1.1 · MA.4.M.1.2 · MA.4.M.2.1
Common Core: 4.MD.A.1 · 4.OA.A.2
Mixed units5 lessons
- Mixed units of capacity
- Mixed units of length
- Mixed units of mass
- Mixed units of time
- Multi-step measurement problems
Florida B.E.S.T.: MA.3.M.1.2 · MA.4.M.1.2 · MA.4.M.2.1
Common Core: 4.MD.A.2
Describing data2 lessons
- Stems and leaves
- Mode, median and range
Florida B.E.S.T.: MA.4.DP.1.1 · MA.4.DP.1.2
Common Core: 4.MD.B.4
Mixed numbers, and the year in review4 lessons
- Measurements as mixed numbers
- Problems with mixed measurements
- The area of a composite figure
- The year in review
Florida B.E.S.T.: MA.3.GR.2.4 · MA.4.NSO.2.3 · MA.4.M.1.2 · MA.4.M.2.1 · MA.4.GR.2.1
Common Core: 4.MD.A.1 · 4.NF.B.3 · 3.MD.C.7d · 4.MD.A.3
Arranged by topic
More Grade 4 lessons
More Grade 4 lessons: 7 chapters · 15 lessons
These start in Grade 4 but sit in the workbook by topic, not in a module. One marked with a later year carries on into it.
Multiplying and dividing3 lessons
- Multi-digit multiplication
- Division with remainders
- What the leftover means
Florida B.E.S.T.: MA.4.NSO.2.2 · MA.4.NSO.2.3 · MA.4.NSO.2.4 · MA.4.AR.1.1
Common Core: 4.NBT.B.5 · 4.NBT.B.6 · 4.OA.A.3
Decimals2 lessons
- Tenths and hundredths
- Comparing decimals
Florida B.E.S.T.: MA.4.NSO.1.5 · MA.4.FR.1.2
Common Core: 4.NF.C.6 · 4.NF.C.7
Bigger numbers4 lessons
- Numbers up to a million
- Rounding big numbers
- Factors and multiples
- Prime and composite
Florida B.E.S.T.: MA.3.AR.3.2 · MA.4.NSO.1.2 · MA.4.NSO.1.4 · MA.4.AR.3.1
Common Core: 4.NBT.A.1 · 4.NBT.A.2 · 4.NBT.A.3 · 4.OA.B.4
What a fraction is2 lessons
- Comparing fractions that do not match
- Mixed numbers
Florida B.E.S.T.: MA.4.FR.1.4 · MA.4.FR.2.1
Common Core: 4.NF.A.2 · 4.NF.B.3
Calculating with fractions1 lesson
- Multiplying a fraction by a whole number
Florida B.E.S.T.: MA.4.FR.2.4
Common Core: 4.NF.B.4
Area, perimeter and volume1 lesson
- Changing units
Florida B.E.S.T.: MA.4.M.1.2
Common Core: 4.MD.A.1
Angles and position2 lessons
- Naming angles
- Measuring angles
Florida B.E.S.T.: MA.4.GR.1.1 · MA.4.GR.1.2
Common Core: 4.G.A.1 · 4.MD.C.6
Florida B.E.S.T. benchmarks: Florida's B.E.S.T. Standards for Mathematics are published by the Florida Department of Education. RodriMath is not affiliated with, endorsed by, or sponsored by the Florida Department of Education or the State of Florida.
Common Core State Standards codes: © Copyright 2010. National Governors Association Center for Best Practices and Council of Chief State School Officers. All rights reserved. RodriMath is not affiliated with, endorsed by, or sponsored by either organisation.
The other years