Subtraction facts within 10 represent the relationships among a whole, a part, and the remaining part, including cases with zero and subtracting a number from itself; each fact connects to the corresponding addition fact and can be interpreted as finding a difference or missing addend. This foundational fact knowledge supports efficient mental computation and later subtraction with larger numbers, while excluding facts involving numbers beyond 10 or more general algorithms.
To solve a subtraction fact, think about the whole, the part being taken away, and what remains.
For example:
You can check the fact with the related addition fact:
Because and make the whole , the subtraction fact is correct.
Click a topic below to practice the foundational skills you'll need, learn the steps, or master this skill
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