common core math worksheets
Common Core Math Worksheets with Practice and Answer Keys
Pick a worksheet shelf by operation, jump to a published skill path, or open a grade map to see how MathWe skills connect to draft Common Core references. PDFs and answer keys are generated in the browser from stable recipes.
Worksheet shelves
Printable practice by operation
Addition
Fixed examples, answer tables, and browser-generated PDF downloads.
Open addition worksheets Worksheet hubSubtraction
Fixed examples, answer tables, and browser-generated PDF downloads.
Open subtraction worksheets Worksheet hubMultiplication
Fixed examples, answer tables, and browser-generated PDF downloads.
Open multiplication worksheets Worksheet hubDivision
Fixed examples, answer tables, and browser-generated PDF downloads.
Open division worksheets Worksheet hubFractions
Fixed examples, answer tables, and browser-generated PDF downloads.
Open fractions worksheets Worksheet hubDecimals
Fixed examples, answer tables, and browser-generated PDF downloads.
Open decimals worksheets Worksheet hubPlace value
Fixed examples, answer tables, and browser-generated PDF downloads.
Open place value worksheets Worksheet hubCounting
Fixed examples, answer tables, and browser-generated PDF downloads.
Open counting worksheetsSkill-aligned practice
Published skill pages with routines and formats
Add Within 20
Addition facts become easier when students count on from the larger number or make a ten first.
Addition / SubtractionAddition Facts
Addition facts become easier when students count on from the larger number or make a ten first.
Addition / SubtractionSubtract Within 20
Subtraction facts can be solved by counting back, using a number line, or asking what addend is missing.
Counting / CardinalitySkip Counting
Skip counting uses equal jumps to count faster.
Multiplication / DivisionMultiplication Facts
Multiplication facts become fluent through patterns, related facts, and short repeated practice.
Addition / SubtractionAdd Within 100
Two-digit addition works when tens are added to tens and ones are added to ones.
Addition / SubtractionSubtract Within 100
Two-digit subtraction works when each place is handled according to its value.
Addition / SubtractionTwo-Digit Addition With Regrouping
Regrouping in addition means trading ten ones for one ten so each place value column stays organized.
Multiplication / DivisionDivision Facts
Division facts are easier when students think about the related multiplication fact.
Place / ValuePlace Value to 100
Place value tells what each digit is worth based on its position.
Multiplication / DivisionTwo-Digit Multiplication
Two-digit multiplication works by breaking each factor into tens and ones, then combining the partial products.
FractionsCompare Fractions
Fractions can be compared when students check the whole, look at the denominator, and reason about the numerator.
Multiplication / DivisionLong Division
Long division breaks a larger division problem into repeated place value steps.
Multiplication / DivisionDivision With Remainders
A remainder is the amount left after making as many equal groups as possible.
DecimalsDecimal Place Value
Decimal place value names parts of one whole, with tenths one place after the decimal point and hundredths two places after it.
Multiplication / DivisionMultiplication as Equal Groups
Multiplication counts equal-size groups efficiently.
Multiplication / DivisionMulti-Digit Multiplication
Multi-digit multiplication uses place value to multiply each part, then combines the partial products.
FractionsSimplify Fractions
Simplifying a fraction means dividing the numerator and denominator by the same common factor until no common factor remains.
Multiplication / DivisionRepeated Addition
Repeated addition shows the same number added again and again; multiplication is the shorter way to write it.
Addition / SubtractionThree-Digit Addition
Regrouping in addition means trading ten ones for one ten so each place value column stays organized.
FractionsEquivalent Fractions
Equivalent fractions use different numerators and denominators to name the same value.
FractionsUnit Fractions
A unit fraction names one equal part of a whole.
Addition / SubtractionTwo-Digit Subtraction With Regrouping
Regrouping in subtraction means trading one ten for ten ones so there are enough ones to subtract.
Place / ValueExpanded Form
Expanded form writes a number as the sum of its place value parts.
Place / ValuePlace Value to 1,000
Place value tells what each digit is worth based on its position.
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Answer keys
How checking works on MathWe
Worksheet examples embed answer tables on each hub page. Download PDF or open the answer PDF from the action bar; both use the same stable recipe so parents and teachers see the same problems and keys.