Worksheet on Number in Expanded Form

Practice the questions given in the worksheet on number in expanded form. Expanded form of a number is to break down each digit and write the number to show how each digit in the number represents different values.

We can learn expanded form of a number in the following ways:

(i) if we write the number in words.

(ii) if we arrange the digits in a place value.


1. Name the hundreds, tens and ones for each number in both ways:

For example:

145 = 1 hundreds + 4 tens + 5 ones

      = 100 + 40 + 5

(i) 256

(ii) 327

(iii) 473

(iv) 789

(v) 847

2. Four ways of showing hundreds, tens and ones. Complete the table with the help of the first row.

For example:

The abacus

Columns

Expanded form

Standard form

The Abacus

H

1

T

3

O

1


100 + 30 + 1


131

The Abacus

H

.....

T

.....

O

.....


................


........

The Abacus

H

.....

T

.....

O

.....


................


........

The Abacus

H

.....

T

.....

O

.....


................


........

The Abacus

H

.....

T

.....

O

.....


................


........

The Abacus

H

.....

T

.....

O

.....


................


........

3. Write the number in standard form:

(i) 200 + 30 + 1

(ii) 900 + 10 + 7

(iii) 500 + 40 + 9

(iv) 800 + 20 + 6

(v) 400 + 70 + 3

(vi) 700 + 30 + 3

(vii) 300 + 0 + 4

(viii) 200 + 30 + 0


4. Write in expanded form:

(i) 365

(ii) 248

(iii) 827

(iv) 980

(v) 405

(vi) 319


Answers for worksheet on number in expanded form are given below to check the above questions.


Answers:


1. (i) 256 = 2 hundreds + 5 tens + 6 ones

             = 200 + 50 + 6

(ii) 327 = 3 hundreds + 2 tens + 7 ones

          = 300 + 20 + 7

(iii) 473 = 4 hundreds + 7 tens + 3 ones

           = 400 + 70 + 3

(iv) 789 = 7 hundreds + 8 tens + 9 ones

            = 700 + 80 + 9

(v) 847 = 8 hundreds + 4 tens + 7 ones

           = 800 + 40 + 7

2.

The abacus

Columns

Expanded form

Standard form

The Abacus

H

3

T

2

O

5


300 + 20 + 5


325

The Abacus

H

6

T

1

O

2


600 + 10 + 2


612

The Abacus

H

2

T

3

O

6


200 + 30 + 6


236

The Abacus

H

4

T

5

O

6


400 + 50 + 6


456

The Abacus

H

6

T

6

O

1


600 + 60 + 1


661

3. (i) 231

(ii) 917

(iii) 549

(iv) 826

(v) 473

(vi) 733

(vii) 304

(viii) 230


4. (i) 300 + 60 + 5

(ii) 200 + 40 + 8

(iii) 800 + 20 + 7

(iv) 900 + 80 + 0

(v) 400 + 0 + 5

(vi) 300 + 10 + 9





2nd Grade Math Practice

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