Addition
Addition combines quantities to find a total.
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Explore 66 skills across 5 grades.
Counting and number sense · 9 skills · 36 free resources
Addition combines quantities to find a total.
Subtraction finds what remains or the difference between two amounts.
Missing-number equations show the relationship between operations.
Number patterns follow a repeatable rule.
Place value tells you what a digit means based on its position.
Comparing numbers tells which quantity is greater, smaller, or equal.
Time calculations use hours and minutes on a 12-hour clock.
Money problems combine coin values and dollar amounts.
Word problems turn real situations into mathematical operations.
Building two-digit confidence · 11 skills · 44 free resources
Addition combines quantities to find a total.
Subtraction finds what remains or the difference between two amounts.
Multiplication counts equal-size groups efficiently.
Mixed operations require deciding which operation happens first.
Missing-number equations show the relationship between operations.
Number patterns follow a repeatable rule.
Place value tells you what a digit means based on its position.
Comparing numbers tells which quantity is greater, smaller, or equal.
Time calculations use hours and minutes on a 12-hour clock.
Money problems combine coin values and dollar amounts.
Word problems turn real situations into mathematical operations.
Multiplication and clear reasoning · 15 skills · 60 free resources
Addition combines quantities to find a total.
Subtraction finds what remains or the difference between two amounts.
Multiplication counts equal-size groups efficiently.
Division separates a total into equal groups or finds how many groups fit.
Mixed operations require deciding which operation happens first.
Missing-number equations show the relationship between operations.
Number patterns follow a repeatable rule.
Place value tells you what a digit means based on its position.
Comparing numbers tells which quantity is greater, smaller, or equal.
Rounding gives a nearby number that is easier to work with.
Time calculations use hours and minutes on a 12-hour clock.
Money problems combine coin values and dollar amounts.
Fractions describe equal parts of a whole.
Area measures a surface; perimeter measures a distance around it.
Word problems turn real situations into mathematical operations.
Multi-step thinking · 16 skills · 64 free resources
Addition combines quantities to find a total.
Subtraction finds what remains or the difference between two amounts.
Multiplication counts equal-size groups efficiently.
Division separates a total into equal groups or finds how many groups fit.
Mixed operations require deciding which operation happens first.
Missing-number equations show the relationship between operations.
Number patterns follow a repeatable rule.
Place value tells you what a digit means based on its position.
Comparing numbers tells which quantity is greater, smaller, or equal.
Rounding gives a nearby number that is easier to work with.
Money problems combine coin values and dollar amounts.
Fractions describe equal parts of a whole.
Decimals represent parts of a whole using place value.
Area measures a surface; perimeter measures a distance around it.
A factor divides another whole number without a remainder.
Word problems turn real situations into mathematical operations.
Preparing for middle-school math · 15 skills · 60 free resources
Addition combines quantities to find a total.
Subtraction finds what remains or the difference between two amounts.
Multiplication counts equal-size groups efficiently.
Division separates a total into equal groups or finds how many groups fit.
Mixed operations require deciding which operation happens first.
Missing-number equations show the relationship between operations.
Place value tells you what a digit means based on its position.
Rounding gives a nearby number that is easier to work with.
Fractions describe equal parts of a whole.
Decimals represent parts of a whole using place value.
Area measures a surface; perimeter measures a distance around it.
A factor divides another whole number without a remainder.
Percent means a number of parts out of 100.
Word problems turn real situations into mathematical operations.
The order of operations ensures expressions are evaluated consistently.