Recall and use all the subtraction facts of 9

The ArithmeKit from CanDoMaths presents a series of engaging activities designed to help students recall and use all the subtraction facts for the number 9. The exercises encourage pupils to match subtraction statements with their correct answers, such as "9 - 2 = 7" and "9 - 5 = 4". By working through these problems, children learn that subtracting different numbers from 9 results in a variety of outcomes, not just smaller numbers. The resource prompts students to think critically by asking them to find missing digits that make the subtraction statements true, ensuring that each digit from 0 to 9 is used once. This task not only tests their subtraction skills but also their problem-solving abilities and understanding of number relationships.

Furthermore, the ArithmeKit challenges students to explore the concept of subtraction in a hands-on way by starting with 9 counters and discovering the different possibilities when some are taken away. This practical approach to learning helps students to visualise the subtraction process and reinforces their understanding of the facts. They are encouraged to record their findings, which can lead to the observation that there are ten unique subtraction facts when starting with the number 9. The exercises also include reflective questions that ask whether certain statements about subtraction are sometimes, always, or never true, inviting deeper thought and discussion about the patterns and properties of numbers.