Libri di subtraction

Meaningful vs. mechanical learning

One two three

Hardworking puppies

Move on with subtracting

Good-Bye Pie! A First Book of Subtraction

Help me learn subtraction

Our Harvest Lunch

My first book of subtraction

One less fish

Adding and Subtracting Practice

Starting to subtract

Subtracting with seals

Adding and subtracting

Brainy Book of Addition and Subtraction

Addition and subtraction

Adding and Subtracting in Math Club (Math in Our World)

Using Geometry (Mathzones)

The Pizza Party

Take one home free

Subtraction