Equal groups represent repeated addition: a collection with the same number in each group can be described by adding that group size once for every group, such as for four groups of three. The number of equal groups determines the number of addends, while the number in each group determines their value; unequal groups do not fit this structure. The focus is on small whole-number quantities and concrete or pictorial groupings, providing a foundation for multiplication without requiring generalized or advanced symbolic treatment.
When groups have the same number of objects, you can show them with repeated addition.
Look at:
ššš ššš ššš ššš
Step 1: Count the groups.
There are groups.
Step 2: Count the objects in one group.
Each group has apples.
Step 3: Add the group size once for each group.
Since there are four groups of three, write:
Step 4: Find the total.
So, there are 12 apples altogether.
Remember: the number of groups tells you how many numbers to add, and the number in each group tells you the value of each number. The groups must be equal. For example, groups of , , and are not equal groups.
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