Elementary Mathematics
Lesson 61
Repeated Addition
Same number again and again
Repeated addition
3 groups of 3 appear: 3 + 3 + 3 = 3 × 3 = 9.
Repeated addition
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Conceptual model: a simplified teaching picture.
Make 3 groups with 3 pebbles in each group.How many pebbles altogether?
Adding the same number again and again is multiplication: 3 + 3 + 3 = 3 × 3.