Title Description
Addition word problems within 10 Practice solving word problems by adding small numbers (numbers 10 or less).
Compare shapes Practice comparing shapes based on their number of sides, number of corners, and side-lengths.
Make 10 Practice adding numbers to make 10.
Subtract within 5 Subtract small numbers. All answers are less than 5.
Teen numbers Practice thinking of teen numbers as a ten plus some ones.
Compose shapes Practice combining shapes to make other shapes.
Relate addition and subtraction Practice seeing how addition and subtraction are related.
Subtraction word problems within 10 Practice solving word problems by subtracting small numbers (numbers 10 or less).
Numbers to 120 Practice finding missing numbers in a list of numbers between 0 and 120.
Order by length Practice ordering 3 objects by length.  
2-digit place value challenge Practice breaking numbers apart into tens and ones.
Compare 2-digit numbers Practice comparing numbers (within 100) using the symbols <, >, and =. 
Groups of ten objects Practice grouping objects by tens.
Halves and fourths Practice dividing shapes into 2 or 4 equal sections.
Measure lengths 1 Measure objects with same-size length units without gaps or overlaps.
Tens and ones Practice thinking about 2-digit numbers as tens and ones.
Compare 2-digit numbers 2 Practice more challenging problems comparing numbers within 100.
Subtract within 20 Practice subtracting. All numbers in these problems are 20 or less.
Equal sign Practice telling which equation is true.
Addition and subtraction word problems 1 Practice adding and subtracting to solve word problems. Numbers used are 20 or less.