Learning the x9 facts and learning any fact that has an even factor (7 x 8, 6 x 8, 4 x 7, etc):
Think about two facts at a time, such as 8 × 3 and 3 × 8. These two problems look different but have the same answer.
Multiplication Facts to 10 x 10
March 2, 2022 | Cindy Kuperus
One of the math standards that is measured in Grade 3 is this one:
3.OA.7: By the end of Grade 3, know from memory all products of two one-digit numbers.
Our math series, Investigations, provides useful strategies to learn the facts. Here are strategies that students are introduced to that provide understanding for all facts to 10 x 10 – except one fact.
After reading these, can you find the ONE fact that cannot be solved with any of these strategies?
Learning the ×1 and x 2 facts (examples below – I’m sorry it didn’t copy well from the page.)
Learning the x10 and x5s
a.) Skip counting by 10s and 5s.
10, 20, 30, 40, 50, 60 means 6 × 10 = 60
5, 10, 15, 20, 25, 30 means 6 × 5 = 30
b.) Another way to find a ×5 fact is to remember that it is half of a ×10 fact.
Have you discovered the ONE fact that is not included in any of these strategies? If so, or if you want to know, email Ms. Kuperus!
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