Place Value of Numbers: Tens and One’s Digits

Tens and Ones:

The two digits of a two-digit number represent the number of tens and ones.

• 37 has 2 digits.
• 37 stands for 3 tens and 7 ones.
• The 3 in 37 is the tens digit.
• The 7 in 37 is the one digit.

Let us understand that better with the help of the following examples

Count the tens and ones and write the number.

Answer:

1. Match the numbers with tens and ones.

Answer:

Understanding Tens Digit & One’s Digit:

The tens place digit is the left-sided digit of a two-digit number.

The place digit is the right-sided digit of a two-digit number.

• 46 stands for 4 tens and 6 ones.
• The left-side digit, 4 in 46, is the tens digit.
• The right-side digit, 6 in 46, is the one digit.

Drawing a Model for a Two-Digit Number:

Now we will learn how to draw a model to show the tens and ones in a two-digit number.

Draw a model to show the tens and ones.

• Draw a line for each ten.
• Draw a dot for each one.

Example:

1. Jeevan has 26 bouncing balls.

Draw a model to show 26.

Steps to draw a model:

Step – 1: Read the question carefully.

Step – 2: Observe tens place digit and draw a line for each ten.

Step 3: Observe one’s place digit and draw a dot for each one.

Answer:

Jeevan has 26 bouncing balls.

2 tens and 6 ones.

Counting the Tens and Ones in a Two-Digit Number:

First, we count the lines in the model to write the tens digit on the left.

Next, we count the dots in the model to write one digit on the right.

Examples:

Count the Tens and Ones.

Count the Tens and Ones.

2. Nidhi draws the model below to show a number.

What number is Nidhi showing?

Steps to solve the problem:

Step – 1: Read the question carefully.

Step – 2: Count the lines in the picture and write the tens digit.4

Step 3: Count the dots in the picture and write the one digit.2

Step 4: Write the number.42

Answer:

Activity:

Color the boxes that have numbers with tens digit as 4.

Answers:

Exercise

1. Which number is represented here?

2. Draw a model to show the number 62.

3. Ranjith has 49 buttons. Draw his buttons so that a friend can see that there are 49 buttons without counting them one by one.

4. Manoj has 52 cupcakes at his party. Draw a model to show 52.

5. Devi is collecting data on the number of hours of daylight in the fall and winter. She records data for 85 days. Draw a model to show 85.

Concept Summary

What We Have Learned

• Understanding Tens digit and One’s digit.
• Draw a model to understand two-digit numbers.
• Use drawings to solve problems with Tens and Ones