2nd grade
Place value to 1000 · Add and subtract within 100 · The number line itself · Measure and data · Arrays and equal groups — 4 books, 3 games, all printable.
Books
Guided practice with hints. Not timed.
Place Value Palace
Build the number from hundreds, tens and ones — then say which is bigger.
Carry and Borrow
The four cases: add with and without a carry, subtract with and without a borrow.
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.
Games
Short rounds for building speed.