All grades
Kindergarten through fifth.
Kindergarten
Counting and cardinality · Number bonds to 10 · Story problems · Flat and solid shapes · Compare and measure
Counting Crew
Count them, name the next number, and find who is 4th in line.
Number Friends
Find the missing part. 6 and what make 10?
Story Time
Little stories about counting. What happens, and how many end up?
Shape Sorter
Name the shape, then count its sides.
The Great Race
Spin, then name the squares you move through. Not "one, two".
Ten-Frame Flash
The dots flash up. How many did you see?
Which Is More
Two numbers. Tap the bigger one.
Longer and Shorter
Which takes longer? What comes first? And which one is the clock?
1st grade
Addition and subtraction to 20 · All kinds of story problems · Place value to 100 · Measure and tell time · Shapes and halves
Adding to Twenty
Sums and differences to 20, starting with the easy ones.
Adding Three Numbers
Three numbers at once. Find the pair that makes ten and start there.
All Kinds of Stories
Every kind of story problem, and how to tell them apart.
Tens and Ones
How many tens? How many ones? Then add them up.
Clocks and Rulers
What time does the clock say? How many units long is it?
Halves and Quarters
Split the shape fairly. Is that a half or a quarter?
Number Line Hop
Drag the number to the right spot on the line.
Make Ten Race
One number shows. Tap what it needs to make ten.
Double-Frame Flash
Two frames flash. How many dots altogether?
The Hundred Board
A hundred squares, ten to a row. Count on from where you are.
Clocks and Time
What time is it? Read the clock, then find the clock that matches.
Dimes and Pennies
A dime is ten pennies. Count the dimes, then the pennies.
2nd grade
Place value to 1000 · Add and subtract within 100 · The number line itself · Measure and data · Arrays and equal groups
Place Value Palace
Build the number from hundreds, tens and ones — then say which is bigger.
Take It Apart
Break a number into two parts. The same picture keeps turning out to be about something new.
Composing and Decomposing Tens
The four cases: adding with and without composing a ten, subtracting with and without decomposing one.
Measure and Chart
How long is it? And what does the chart tell you?
Arrays and Equal Groups
Count the rows, count the columns, find the total.
Close to a Hundred
Four digits, two numbers. Get as close to 100 as you can.
Hundred Line Hop
No tick marks this time. Where does 63 go?
Decade Duel
Which is bigger: 65 or 49? Careful — the ones digit lies.
Count Up to the Target
How far from 48 to 62? Jump to the ten, then jump in tens.
Money Math
How much is in the handful? Count the coins, then write it down.
Time to Five Minutes
Count round in fives. What time is it, and is it morning or afternoon?
3rd grade
Multiplication and division · Fractions on the number line · Area and perimeter · Add, subtract and round within 1000 · Measurement and data · Story problems
Times Table Tower
Build the tower one times table at a time.
Fraction Number Line
Halves, thirds, fourths and eighths — find them on the line.
Area and Perimeter
Squares inside, or fence around the edge?
Round and Reckon
Round it first, then work it out. Does your answer look right?
Four Ways to Subtract
Subtracting with nothing decomposed, one ten decomposed, a hundred decomposed across a zero — and the trick that avoids all of it.
Time and Data
How long did it take? And what does the graph say when each square is worth five?
Fact Family Forge
Three numbers make four facts. Find the missing one.
Array Architect
How many squares? Then: does 4×6 match 6×4?
Draw the Story
Four bags of six, or six bags of four? Draw the story and you can see which.
4th grade
Multi-digit operations · Equivalent fractions and decimals · Shapes, angles and lines · Factors and multiples · Times as many
Long Multiplication
Break it into parts, multiply, put it back together.
Fold and Sort
Would it fold in half exactly? Then sort the triangles by their corners.
Same Size Pieces
Break a fraction into pieces, then add, take away and repeat them. The piece never changes size.
Equivalent Fractions
Same amount, different name. 2/4 is 1/2.
Angles and Lines
Acute, right, obtuse — then work out the missing angle.
Factor Forest
Which numbers divide it exactly? And which numbers have no pairs at all?
Times As Many
Three times as many is not three more. Here is the difference.
Division Descent
Climb down: how many times does it go?
Decimal Drop
Where does 0.35 land? And what fraction is that?
5th grade
Decimals to thousandths · Fraction operations · Multi-digit multiplication and division · Volume · The coordinate plane
Fraction Foundry
Common denominators, then the four operations.
Decimal Place
Tenths, hundredths, thousandths — line up the point.
The Standard Algorithm
The written methods, at full size. Two digits by two, and long division.
Volume and Space
Length times width times height — how many cubes fit?
Mixed Number Line
Past one and under two. Where does 7/4 go?
Coordinate Quest
Across first, then up. Where is (3, 5)?