Lesson

Read and Write Two-Digit Numbers

Students connect the tens digit and ones digit to number names and written two-digit numbers.

Read and Write Two-Digit Numbers

What students learn

Students learn to read and write two-digit numbers by naming the tens digit first and the ones digit second. Use to show that a number can be renamed as tens plus ones.

Why it matters

When students understand the parts of a two-digit number, they stop guessing from memory. They can explain why 47 means 4 tens and 7 ones, not just say the number aloud. If they need another model, reinforces that each digit gets its value from its position.

Learn the idea

In a two-digit number, the left digit tells how many tens there are. The right digit tells how many ones there are. Watch and listen for how the tens digit is named first. In 62, the 6 means 6 tens, or 60. The 2 means 2 ones. Together, 60 and 2 make 62.

Try it

Write 35, 48, 70, and 96. For each number, ask the student to circle the tens digit, underline the ones digit, and say the number as tens and ones. Then compare their explanation with before trying two more numbers of their own.

Parent guide

Say the number, then ask the child to build or draw it. If the child reverses digits, compare the two numbers with objects. For example, show that 35 has 3 tens and 5 ones, while 53 has 5 tens and 3 ones. Keep the correction visual and concrete. For a quick review at the end, let the child sing or tap along with and then name the tens and ones in one number.