AlgèbreFacile
Math Learning PlatformNatural Numbers and the Number Line
Beginner
📚 arithmetique
📖 About this lesson
Understand natural numbers, compare them and place them on a number line
Lesson Content
Natural Numbers
Natural numbers are positive whole numbers: ,[object Object]
The number line
We can represent numbers on a line:
0 — 1 — 2 — 3 — 4 — 5 — 6 — 7 — 8 — 9 — 10
Comparing numbers
We use symbols:
- •[object Object], : less than (3 < 7)
- •[object Object], : greater than (9 > 4)
[object Object], : equal to (5 = 5)
Rounding numbers
Round to the nearest ten:
- •If units digit is ,[object Object], → round down, ,[object Object],
- •If units digit is ,[object Object], → round up, ,[object Object],
Practical Examples
1
Example 1
📋 Problem
Comparer : 45 ___ 54
✅ Solution
45 < 54
💡 Explanation
45 est plus petit que 54 car les dizaines 4 < 5
2
Example 2
📋 Problem
Arrondir 67 à la dizaine
✅ Solution
70
💡 Explanation
7 ≥ 5, donc on arrondit vers le haut : 67 → 70
Ready to Practice? 💪
5 exercise(s) available for this lesson
Test your knowledge and earn points!