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CBSE Class 4  >  Class 4 Notes  >  Mathematics Olympiad   >  Worksheet Solution: Number Sense

Worksheet Solution: Number Sense

Worksheet Solution: Number Sense

Expand the Numbers

Q1. Expand the number 4,573.
Ans: 4,000 + 500 + 70 + 3
Solution: 4,573 = 4,000 + 500 + 70 + 3

Q2. Write 8,421 in expanded form.
Ans: 8,000 + 400 + 20 + 1
Solution: 8,421 = 8,000 + 400 + 20 + 1

Q3. Expand the number 6,305.
Ans: 6,000 + 300 + 5
Solution: 6,305 = 6,000 + 300 + 5

Q4. What is the expanded form of 9,134?
Ans: 9,000 + 100 + 30 + 4
Solution: 9,134 = 9,000 + 100 + 30 + 4

Q5. Expand the number 7,892.
Ans: 7,000 + 800 + 90 + 2
Solution: 7,892 = 7,000 + 800 + 90 + 2

Practice Questions

Q1. What is the sum of 45 and 32?
Ans: 77
Solution: 45 + 32 = 77

Q2. If you have 15 apples and you give away 7, how many apples do you have left?
Ans: 8
Solution: 15 - 7 = 8

Q3. There are 4 baskets with 6 apples each. How many apples are there in total?
Ans: 24
Solution: 4 x 6 = 24

Q4. Divide 56 by 7. What is the result?
Ans: 8
Solution: 56 ÷ 7 = 8

Q5. If you start with the number 5 and add 3 three times, what number do you get?
Ans: 14
Solution: 5 + 3 + 3 + 3 = 14

Fill in the Blanks

Q1. Three weeks has _______ days.
Ans: 21

Q2. 6 multiplied by 7 equals _______.
Ans: 42

Q3. If you subtract 8 from 20, you get _______.
Ans: 12

Q4.  If you have 4 packs of pencils and each pack contains 9 pencils, you have _______ pencils in total.
Ans: 36

Q5. If you have 20 bananas and eat 7, how many bananas are left?
Ans: 13

True or False

Q1. 10 is greater than 5. _______
Ans: True

Q2. The sum of 8 and 7 is 14. _______
Ans: False
The sum of 8 and 7 is 15.

Q3. 20 divided by 4 is equal to 5. _______
Ans: True

Q4. If you subtract 9 from 18, you get 8. _______
Ans: False
If you subtract 9 from 18, you get 9.

Q5. 6 multiplied by 3 equals 18. _______
Ans: True

Q6. The number 50 is less than the number 30. _______
Ans: False
The number 50 is greater than the number 30.

Q7. When you add 6 and 9, the result is 16. _______
Ans: False
When you add 6 and 9, the result is 15.

Q8. The difference between 15 and 10 is 5. _______
Ans: True

Q9. 7 times 5 is equal to 35. _______
Ans: True

Q10. 100 divided by 10 equals 15. _______
Ans: False
100 divided by 10 equals 10.

The document Worksheet Solution: Number Sense is a part of the Class 4 Course Mathematics Olympiad Class 4.
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FAQs on Worksheet Solution: Number Sense

1. How can I improve my number sense skills in Class 4?
Ans. To improve number sense skills in Class 4, you can practice mental math, play math games, and use manipulatives to visualize numbers and operations.
2. What are some common strategies to solve number sense problems in Class 4?
Ans. Common strategies to solve number sense problems in Class 4 include using number lines, breaking numbers down into smaller parts, and estimating the answer before solving.
3. How can parents help their children develop number sense at home for Class 4?
Ans. Parents can help their children develop number sense at home by incorporating math into everyday activities, playing math games together, and encouraging a positive attitude towards math.
4. What are some key concepts to focus on for improving number sense in Class 4?
Ans. Key concepts to focus on for improving number sense in Class 4 include place value, addition and subtraction strategies, multiplication and division facts, and understanding fractions and decimals.
5. Are there any online resources or apps available to practice number sense skills for Class 4 students?
Ans. Yes, there are several online resources and apps available to practice number sense skills for Class 4 students, such as Khan Academy, Prodigy, and Math Playground. These platforms offer interactive games and activities to help students strengthen their math skills.
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Document Description: Worksheet Solution: Number Sense for Class 4 2026 is part of Mathematics Olympiad Class 4 preparation. The notes and questions for Worksheet Solution: Number Sense have been prepared according to the Class 4 exam syllabus. Information about Worksheet Solution: Number Sense covers topics like and Worksheet Solution: Number Sense Example, for Class 4 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Worksheet Solution: Number Sense.
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