Class 3 Maths Worksheet – Number System, Place Value, Rounding & Estimation
Class 3 Maths Worksheet: Practise important number concepts with this
carefully designed Class 3 Mathematics worksheet from
The Busy Brains Tuition Classes. This worksheet covers
expanded form, standard form, face value, successor and predecessor,
Indian Number System, International Number System, rounding off and estimation.
It is useful for classroom practice, homework, revision and exam preparation.
Learning numbers becomes easier when students practise different forms of numbers, understand place value and learn how to estimate answers. This Class 3 Maths worksheet provides a variety of questions to help students build confidence with large numbers and mathematical operations.
The worksheet includes questions based on both the Indian Number System and International Number System, along with rounding and estimation activities involving addition, subtraction and multiplication.
Class 3 Maths Worksheet Questions
A. Expanded Form
1. Write the following numbers in expanded form.
a) 45,672 = ______________________________
b) 3,08,415 = _____________________________
c) 7,25,306 = _____________________________
d) 9,04,018 = _____________________________
e) 56,78,234 = ____________________________
f) 2,45,67,109 = __________________________
g) 4,08,03,215 = __________________________
h) 8,70,05,406 = __________________________
i) 1,02,34,567 = __________________________
j) 9,09,09,009 = _________________________
2. Write the number in standard form.
a) 40,000 + 5,000 + 600 + 20 + 3 = __________
b) 3,00,000 + 8,000 + 400 + 10 + 5 = __________
c) 7,00,00,000 + 20,00,000 + 5,000 + 300 + 6 = __________
d) 4,00,00,000 + 8,00,000 + 30,000 + 200 + 10 = __________
e) 2,00,00,000 + 40,00,000 + 5,00,000 + 6,000 + 70 + 9 = __________
B. Face Value
3. Write the face value of the underlined digit.
a) 45,672 → __________
b) 7,25,306 → __________
c) 3,84,215 → __________
d) 56,78,234 → __________
e) 2,45,67,109 → __________
f) 4,08,03,215 → __________
g) 8,70,05,406 → __________
h) 9,09,09,009 → __________
i) 1,02,34,567 → __________
j) 7,86,543 → __________
4. Find the face value of the given digit.
a) Face value of 6 in 4,65,321 = __________
b) Face value of 8 in 28,45,678 = __________
c) Face value of 3 in 3,45,67,890 = __________
d) Face value of 7 in 7,08,45,216 = __________
e) Face value of 9 in 45,67,89,012 = __________
C. Successor and Predecessor
5. Write the successor of each number.
a) 4,999 → __________
b) 45,678 → __________
c) 99,999 → __________
d) 3,45,678 → __________
e) 9,99,999 → __________
f) 25,67,890 → __________
g) 99,99,999 → __________
h) 4,56,78,999 → __________
6. Write the predecessor of each number.
a) 5,000 → __________
b) 45,679 → __________
c) 1,00,000 → __________
d) 3,45,679 → __________
e) 10,00,000 → __________
f) 25,67,891 → __________
g) 1,00,00,000 → __________
h) 5,67,89,001 → __________
D. International Number System
7. Write the following numbers with commas according to the International Number System.
a) 45672 → __________________
b) 345678 → __________________
c) 2345678 → __________________
d) 12345678 → __________________
e) 56789012 → __________________
f) 345678901 → __________________
g) 987654321 → __________________
8. Write the following numbers in words according to the International Number System.
a) 45,678 = __________________________________
b) 345,678 = _________________________________
c) 2,345,678 = _______________________________
d) 12,345,678 = ______________________________
e) 345,678,901 = _____________________________
9. Fill in the blanks.
a) 1 million = __________
b) 10 million = __________
c) 100 million = __________
d) 1,000,000 is called __________ million.
e) 5,000,000 is called __________ million.
E. Indian Number System
10. Put commas according to the Indian Number System.
a) 45672 → __________________
b) 345678 → __________________
c) 2345678 → __________________
d) 12345678 → __________________
e) 56789012 → __________________
f) 345678901 → __________________
g) 987654321 → __________________
11. Write the following numbers in words according to the Indian Number System.
a) 45,678 = __________________________________
b) 3,45,678 = _________________________________
c) 23,45,678 = ________________________________
d) 1,23,45,678 = ______________________________
e) 5,67,89,012 = ______________________________
12. Complete the following.
a) 1 lakh = __________
b) 10 lakh = __________
c) 1 crore = __________
d) 5 lakh = __________
e) 25 lakh = __________
f) 50 lakh = __________
F. Round Off
13. Round off to the nearest 10.
a) 47 → __________
b) 63 → __________
c) 125 → __________
d) 384 → __________
e) 2,746 → __________
f) 8,995 → __________
14. Round off to the nearest 100.
a) 245 → __________
b) 367 → __________
c) 1,249 → __________
d) 4,651 → __________
e) 8,750 → __________
f) 25,649 → __________
15. Round off to the nearest 1,000.
a) 4,567 → __________
b) 7,249 → __________
c) 12,650 → __________
d) 45,499 → __________
e) 78,501 → __________
f) 2,45,678 → __________
G. Round Off and Add
16. Round each number to the nearest 10 and then add.
a) 47 + 63 = __________
b) 125 + 238 = __________
c) 346 + 459 = __________
d) 1,245 + 2,367 = __________
e) 4,678 + 3,245 = __________
17. Round each number to the nearest 100 and then add.
a) 245 + 367 = __________
b) 1,249 + 2,651 = __________
c) 4,375 + 3,624 = __________
d) 12,450 + 15,620 = __________
e) 24,678 + 35,421 = __________
H. Round Off and Subtract
18. Round each number to the nearest 100 and subtract.
a) 678 − 245 = __________
b) 1,249 − 367 = __________
c) 4,651 − 2,349 = __________
d) 8,750 − 3,245 = __________
e) 25,649 − 12,421 = __________
19. Round each number to the nearest 1,000 and subtract.
a) 4,567 − 2,349 = __________
b) 7,249 − 3,651 = __________
c) 15,650 − 7,240 = __________
d) 45,499 − 12,501 = __________
e) 78,501 − 34,499 = __________
I. Round Off and Multiply
20. Round the numbers and then multiply.
a) 47 × 6 = __________
b) 63 × 4 = __________
c) 125 × 8 = __________
d) 238 × 5 = __________
e) 346 × 7 = __________
f) 1,245 × 3 = __________
g) 2,367 × 4 = __________
h) 4,678 × 5 = __________
J. Estimation
21. Estimate the answer by rounding to the nearest 10.
a) 48 + 31 ≈ __________
b) 76 + 25 ≈ __________
c) 94 − 47 ≈ __________
d) 68 − 29 ≈ __________
e) 34 × 6 ≈ __________
f) 47 × 3 ≈ __________
22. Estimate the answer by rounding to the nearest 100.
a) 245 + 367 ≈ __________
b) 648 + 251 ≈ __________
c) 875 − 324 ≈ __________
d) 1,249 − 651 ≈ __________
e) 245 × 4 ≈ __________
f) 378 × 3 ≈ __________
K. Think & Answer
23. Answer the following.
a) What is the smallest 6-digit number? __________________________
b) What is the greatest 6-digit number? __________________________
c) What is the smallest 7-digit number? __________________________
d) What is the greatest 7-digit number? __________________________
e) What is the smallest number in the Indian system that has the word lakh in its name? __________________________
f) How many zeros are there in 1 lakh? __________________________
g) How many zeros are there in 1 crore? __________________________
h) How many millions make 1 crore? __________________________
i) Which is greater: 45 lakh or 4 million? __________________________
j) Which is greater: 1 crore or 9 million? __________________________
Practice Tip for Students:
Try solving the questions without using a calculator. Pay special attention to the placement of commas in the Indian and International Number Systems and carefully check the digit you are rounding.
Try solving the questions without using a calculator. Pay special attention to the placement of commas in the Indian and International Number Systems and carefully check the digit you are rounding.
Class 3 Maths Number System Worksheet
This worksheet is a useful resource for Class 3 Maths number system practice. It helps students revise important concepts such as place value, expanded form, standard form, face value, successor, predecessor, Indian Number System, International Number System, rounding off and estimation.
Teachers and parents can use these questions for Class 3 maths homework, tuition practice, classroom worksheets, revision and exam preparation. Students can also practise the questions repeatedly to improve their speed and accuracy.
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