This knowledge comprises the products of 7 multiplied by whole numbers from 0 through 10, including the meaning of each product as seven equal groups or an array with seven rows. It includes recognizing equivalent facts through the commutative property (for example, 7 × 6 = 6 × 7) and supports efficient multiplication and related division facts; it does not extend to larger factors or generalized algebraic rules.
To recall a multiplication fact for , think of seven equal groups or count by s.
Example: Find .
The tells us the size of each group: .
The tells us there are groups.
Count by six times:
The last number is the product:
So, groups of ? Wait—using the array idea, can also mean rows with in each row. There are objects altogether.
You can also use the commutative property:
Remember the facts for by counting: .
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