Read Numbers to 100 in Numerals

📊 Read Numbers to 100 in Numerals

Learning to read two-digit numbers correctly

🧩 Atoms of Knowledge

Before learning to read numbers to 100, you need to know these building blocks:

(C) Categorical Understand place value: tens and ones – Know that in a two-digit number, the first digit tells us how many tens and the second digit tells us how many ones

(T) Transformation Identify the tens digit in a two-digit number – Be able to point to and name the digit in the tens position

(T) Transformation Identify the ones digit in a two-digit number – Be able to point to and name the digit in the ones position

(F) Fact Know that position determines value – Remember that the same digit means different amounts depending on where it appears (e.g., the 3 in 34 means 30, but the 3 in 43 means 3)

(C) Categorical Understand “teen” numbers are special – Know that numbers from 11-19 follow a different naming pattern than other two-digit numbers

👨‍🏫 I Do – Worked Examples

✏️ Example 1

Read this number aloud:

✏️ Example 2

Read this number aloud:

🤝 We Do – Guided Practice

Let’s try one together! Follow the same steps we used in the examples.

👥 Let’s work on this together

Read this number aloud:

✍️ You Do – Independent Practice

Now it’s your turn! Read each of these numbers aloud. Remember to look at the tens digit first, then the ones digit.

🌟 Challenge Questions

These questions will stretch your thinking! They use the same skill but in different ways.

1. Factual Recall

Challenge 1

What number comes after 49?

Write your answer in numerals.

2. Carry Out a Routine

Challenge 2

Write these numbers in numerals:

twenty-three
sixty-seven
ninety-one
forty-five

3. Classify an Object

Challenge 3

Look at these numbers:

17 70 27 72

Which of these numbers has a 7 in the tens place?

4. Interpret a Situation

Challenge 4

A cinema has seats numbered from 1 to 80.

What is this seat number?

Write it in words.

5. Prove, Show, Justify

Challenge 5

The number 72 is read as “seventy-two”.

Explain why it is read as “seventy-two” and NOT “two-seventy”.

6. Extend a Concept

Challenge 6

Look at this counting pattern:

81, 82, 83, 84, 85, …

If we continue this pattern, what number comes after 89?

7. Construct an Instance

Challenge 7

Write down three different numbers that have the digit 5 in them.

8. Criticize a Fallacy

Challenge 8

Sam was asked to read this number:

Sam said: “This is sixteen”

Explain what Sam has done wrong.