Skip-counting by 5s means generating and interpreting a sequence of whole numbers by repeatedly adding or subtracting 5, typically beginning at 0 or another multiple of 5 and working within 1,000. A number line and place-value patterns show that consecutive terms differ by five and alternate between ones digits 5 and 0; this connects equal groups of five to repeated addition, multiplication, and later work with multiples and measurement.
Skip-counting by 5s means adding each time. Each new number is more than the number before it.
Example: Start at and skip-count by until you reach .
Add again and again:
Step by step:
The ones digits follow a pattern: . This helps you check your work. You can also think of the sequence as equal groups of : each skip adds one more group of five.
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