← Class 3 unitsComputational Thinking
Class 3
Chapter 3: Double Century
Every number can be broken into hundreds, tens and ones. Spotting place value helps us read, write and compare numbers, and seeing patterns helps us predict what comes next.
Learning outcomes
- Make and break numbers up to 200 using place value
- Spot patterns in number sequences
Activities
- Number-name search puzzles
- Skip-count puzzle strips
Worked examples
Read through these first, then try the practice below.
Example 1 — Place value of 137
How many hundreds, tens and ones are in the number 137?
Solution: 1 hundred, 3 tens and 7 ones. So 137 = 100 + 30 + 7.
Example 2 — Skip counting
What comes next? 95, 100, 105, 110, ?
Solution: The pattern adds 5 each step. Next number = 110 + 5 = 115.
Self-do practice
Question 1 of 3 · Score 0/0How would you write the number 184 using place value?
Sign in as a student in this class to save your progress.