What is Skip Counting by 5s?

S0-SA1-0048

Grade Level:

Class 1

Maths, Time

Definition

What is it?

Skip counting by 5s means counting forwards or backwards by adding or subtracting 5 each time. Instead of counting every number (1, 2, 3, 4, 5), you jump directly to every fifth number (5, 10, 15, 20).

Simple Example

Quick Example

Imagine you have a stack of 5-rupee coins. If you count them by skip counting, you'd say: 5 rupees, then 10 rupees, then 15 rupees, and so on. You're adding 5 to the previous total each time.

Worked Example

Step-by-Step

Let's skip count by 5s starting from 10.

Step 1: Start with the given number, which is 10.

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Step 2: Add 5 to 10. So, 10 + 5 = 15.

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Step 3: Add 5 to the new number, 15. So, 15 + 5 = 20.

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Step 4: Add 5 to the new number, 20. So, 20 + 5 = 25.

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Step 5: Add 5 to the new number, 25. So, 25 + 5 = 30.

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So, skip counting by 5s from 10 would be: 10, 15, 20, 25, 30.

Why It Matters

Skip counting by 5s helps you count things quickly and understand patterns in numbers. It's a foundational skill for multiplication and division. People like shopkeepers use it to quickly count money, and even stock market analysts use similar pattern recognition for financial data.

Common Mistakes

MISTAKE: Counting every number instead of jumping. For example, saying 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 when asked to skip count by 5s. | CORRECTION: Remember to add exactly 5 to the previous number to find the next number in the sequence.

MISTAKE: Skipping by a number other than 5. For example, saying 5, 10, 16, 21. | CORRECTION: Always ensure you are adding or subtracting exactly 5 at each step.

MISTAKE: Starting from 1 when a different starting point is given. For example, if asked to skip count by 5s from 7, starting with 5. | CORRECTION: Always begin your skip counting sequence from the specified starting number.

Practice Questions

Try It Yourself

QUESTION: Skip count by 5s, starting from 20, for the next three numbers. | ANSWER: 20, 25, 30, 35

QUESTION: Complete the sequence by skip counting by 5s: 35, 40, ___, ___, 55. | ANSWER: 35, 40, 45, 50, 55

QUESTION: If you have 8 packets of biscuits, and each packet has 5 biscuits, how many biscuits do you have in total? Use skip counting to find out. | ANSWER: 5, 10, 15, 20, 25, 30, 35, 40. You have 40 biscuits.

MCQ

Quick Quiz

Which of these sequences shows skip counting by 5s?

1, 2, 3, 4, 5

5, 10, 15, 20

10, 12, 14, 16

2, 7, 13, 18

The Correct Answer Is:

Option B (5, 10, 15, 20) correctly shows each number increasing by 5. The other options either count by 1s, 2s, or have irregular jumps.

Real World Connection

In the Real World

When you look at the minute hand on a clock, it moves in steps of 5 minutes. From 12, it goes to 5 minutes past (at number 1), then 10 minutes past (at number 2), 15 minutes past (at number 3), and so on. This is exactly skip counting by 5s!

Key Vocabulary

Key Terms

SKIP COUNTING: Counting by a specific number, jumping over the numbers in between. | PATTERN: A sequence that repeats or follows a rule. | SEQUENCE: A set of numbers arranged in a particular order. | FORWARD COUNTING: Counting upwards, adding numbers. | BACKWARD COUNTING: Counting downwards, subtracting numbers.

What's Next

What to Learn Next

Great job understanding skip counting by 5s! Next, you can explore 'Skip Counting by 10s' and 'Skip Counting by 2s'. These build on the same idea but with different step sizes, helping you master number patterns even more.