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Overview
Grade 1 Math
B1. Number Sense
5. B1.5 Whole Numbers
5.1 Number sequences with 1,2,3,5,10
Number Sequences with Steps of 1, 2, 3, 5, and 10
Spot the pattern, find the step size, and complete number sequences that count up or down by 1, 2, 3, 5, or 10.
What You'll Learn
Identify the step size of a sequence by subtracting one term from the next.
Continue a sequence forward by repeatedly adding the same step, such as \( 4, 6, 8, 10 \).
Continue a sequence backward by repeatedly subtracting the same step, such as \( 20, 15, 10, 5 \).
Fill in a missing term by checking the step before and after the gap.
Compare sequences that count by 1, 2, 3, 5, or 10 to see how the pattern changes speed.
Check a completed sequence by confirming every neighboring pair shares the same step.
What You'll Practice
1
Counting by ones to complete sequences up to 100
2
Skip counting by 2s, 3s, 5s, and 10s in forward sequences
3
Filling in missing numbers in patterns with varying intervals
Why This Matters
Skip counting builds your number sense and is essential for multiplication, division, and telling time. Recognizing patterns helps you solve problems faster and prepares you for more advanced math like algebra and data analysis.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Number Patterns
Skip Counting
Sequences
Counting
Number Sense
Pattern Recognition
ON Curriculum Aligned