Children are introduced to a new way to add with this base 10 rods worksheet.

Each ten frame has ten boxes. Some boxes have red chips and others don't. If the top half of the ten frame is filled with red chips, how many are left? 10-5=5.

Help your little one practice her adding subtracting skills with this game of ten frames! Each ten frame has a set of ten boxes.

Practice finding missing numbers while adding within 20 using ten frames!

Kids practice adding numbers with sums up to 20 and writing the sums on this fruit-themed first grade math worksheet.

Build up your addition skills in this model-making addition worksheet!

Use the mat to give students extra practice composing a 10 as they learn to add to 20.