TinyClimbs
Mental Math and Number Sense Worksheets
Free printable from tinyclimbs.com
Practice mental math by filling in boxes to subtract 1 or 10 from various two-digit numbers.

Complete sections of a hundreds chart by filling in the missing consecutive numbers in different grid shapes.

Follow multi-step mental math instructions to find final sums, and fill in numbers that come before or after given values.

Solve place value puzzles where the sum of four surrounding tens and ones blocks equals the number in the center.




