Skill: Skip-count by 5s

Explanation and Free Practice Resources

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.

Detailed Explanation: Skip-count by 5s

Skip-counting by 5s means adding 55 each time. Each new number is 55 more than the number before it.

Example: Start at 2020 and skip-count by 55 until you reach 5050.

Add 55 again and again:

20, 25, 30, 35, 40, 45, 5020,\ 25,\ 30,\ 35,\ 40,\ 45,\ 50

Step by step:

  • 20+5=2520+5=25
  • 25+5=3025+5=30
  • 30+5=3530+5=35
  • 35+5=4035+5=40
  • 40+5=4540+5=45
  • 45+5=5045+5=50

The ones digits follow a pattern: 0,5,0,5,0,5,00, 5, 0, 5, 0, 5, 0. This helps you check your work. You can also think of the sequence as equal groups of 55: each skip adds one more group of five.

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Skip Counting Downward by 5 - Next 3 in Pattern


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