Grade 2 Mathematics Whole Numbers – Counting Numbers Notes
Mathematics — Whole Numbers
Subtopic: Counting Numbers (for age 7)
What are Counting Numbers?
Counting numbers are the numbers we use to count things: 1, 2, 3, 4, 5, ... Whole numbers are 0, 1, 2, 3, ... (zero is added).
Words to know:- Count — say numbers one by one.
- Before — the number just smaller (e.g., before 5 is 4).
- After — the number just bigger (e.g., after 5 is 6).
Counting examples with objects
Look and count:
🍎 🍎 🍎
= 3
✏️ ✏️ ✏️ ✏️ ✏️
= 5
🐦
= 1
Number line: 0 to 10
0
1
2
3
4
5
6
7
8
9
10
Use the number line to find "before" and "after". E.g., after 4 is 5. Before 4 is 3.
Practice — Do these
- Count and write the numbers:
🍌 🍌 🍌 🍌 = ______
- What comes after?
8 → ______
- What comes before?
6 → ______
- Fill the missing numbers:
2, 3, __, 5, __, 7
- Count the kisamvu (leaves) — how many?
🍃 🍃 🍃 🍃 🍃 🍃 = ______
More fun
Play with objects at home: count stones, mangoes, chairs, or pencils. Say the numbers out loud.
Tip for parents/teacher: Use real objects and ask the child to show "before" and "after" with the number line above.
Answers
- 4
- 9
- 5
- 2, 3, 4, 5, 6, 7
- 6
Kenya — Mathematics (early primary). Keep counting every day!