# 3-digit Numbers on an Abacus

We already know about hundreds, tens and ones. Now let us learn how to represent 3-digit numbers on an abacus.

We know, an abacus is a tool or a toy for counting. An abacus which has three rods.

We are learning three digit numbers on an abacus so, this abacus has three rods: the hundreds rod, the tens rod and the ones rod. Each rod can have a maximum of nine beads.

For Example:

1. Take the number 270

2 beads on hundreds rod and 7 beads on tens rod and 0 beads on ones rod

Thus, expanded form of 270 = 2 hundreds and 7 tens and 0 one.

The number can be written in words as: two hundred and seventy.

2. Take the number 422

4 beads on hundreds rod and 2 beads on tens rod and 2 beads on ones rod

Thus, expanded form of 422 = 4 hundreds and 2 tens and 2 ones.

The number can be written in words as: four hundred and twenty-two.

3. Take the number 531

5 beads on hundreds rod and 3 beads on tens rod and 1 bead on ones rod

Thus, expanded form of 531 = 5 hundreds and 3 tens and 1 one.

The number can be written in words as: five hundred and thirty-one.

4. Take the number 506.

5 beads on hundreds rod and 0 beads on tens rod and 6 beads on ones rod

Thus, expanded form of 506 = 5 hundreds and 0 tens and 6 ones.

The number can be written in words as: five hundred and six.

USING AN ABACUS TO READ AND WRITE THE NUMBERS

The picture shown here is of an abacus. We may take the help of an abacus to read and write the numerals. This abacus has three spikes (vertical rods).

In each spike, we can put maximum 9 beads.

Three spikes show ones, tens and hundreds respectively. The abacus given on the right has 5 beads in ones place, 8 beads in the tens place and 6 beads in hundreds place. So, it shows the numeral 685.

We read it as six hundred eighty-five.

The place value chart for 685 is as given below:

Hundreds

Tens

Ones

6

8

5

Questions on 3-digit Numbers on an Abacus:

1. Draw beads on the spikes of the abacus to show the given numbers:

2. Read the numbers shown on the abacus and fill in the placeholders. One has been done for you.

3. Fill in the placeholders with the missing digits. One has been done for you.

(i)

841

=

8

hundreds

4

tens

1

one

(ii)

620

=

___

hundreds

___

tens

___

one

(iii)

576

=

___

hundreds

___

tens

___

one

(iv)

702

=

___

hundreds

___

tens

___

one

(v)

800

=

___

hundreds

___

tens

___

one

(vi)

911

=

___

hundreds

___

tens

___

one

Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.

## Recent Articles

1. ### Worksheet on Triangle | Homework on Triangle | Different types|Answers

Jun 21, 24 02:19 AM

In the worksheet on triangle we will solve 12 different types of questions. 1. Take three non - collinear points L, M, N. Join LM, MN and NL. What figure do you get? Name: (a)The side opposite to ∠L…

2. ### Worksheet on Circle |Homework on Circle |Questions on Circle |Problems

Jun 21, 24 01:59 AM

In worksheet on circle we will solve 10 different types of question in circle. 1. The following figure shows a circle with centre O and some line segments drawn in it. Classify the line segments as ra…

3. ### Circle Math | Parts of a Circle | Terms Related to the Circle | Symbol

Jun 21, 24 01:30 AM

In circle math the terms related to the circle are discussed here. A circle is such a closed curve whose every point is equidistant from a fixed point called its centre. The symbol of circle is O. We…

4. ### Circle | Interior and Exterior of a Circle | Radius|Problems on Circle

Jun 21, 24 01:00 AM

A circle is the set of all those point in a plane whose distance from a fixed point remains constant. The fixed point is called the centre of the circle and the constant distance is known