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Q1: Find the number which exceeds 17319 by 1279

Q2: The sum of two numbers is 94506. One of the number is 49605. Find the other number.

Q3: What should be added o the sum of 346568 and 234263 to get the sum of 800000?

Q4: Find the leat number which is exactly divisible by 12,15 and 20

Q5:  Find the largest number of 4-digits divisible by 12,15,18

Q6: In an election netween two candidates one got 55% of the total valid votes, 20% of the votes were invalid. If the total number of votes was 7500, find the number of valid votes that the other candidate got.

Q7: If 20% of a=b, then b% of 20 is what?

Q8: A student multiplied a number by 3/5 instead of 5/3. Wha is the percentage error in the calculation?

Q9: The length and breadth of a rectangle are(3a+2) and (2a-1). What is the perimeter?

Q10: The difference between the length and breadth of a rectangle is 8cm and the perimeter is 64cm. Find length and breadth.

You can access the solutions to this worksheet here.

The document Worksheet: Maths Tricks - 1 | Mental Maths - Class 1 is a part of the Class 1 Course Mental Maths.
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FAQs on Worksheet: Maths Tricks - 1 - Mental Maths - Class 1

1. What are some easy math tricks to improve my calculation speed?
Ans. There are several easy math tricks you can use to improve your calculation speed. For example, you can use the "nine trick" for quick multiplication - when multiplying a number by 9, you can multiply it by 10 and then subtract the original number. Another trick is to use rounding - round numbers to the nearest ten, perform the calculation, and then adjust your answer accordingly. Additionally, mastering the multiplication table up to 12 can significantly enhance your speed in basic arithmetic.
2. How can math tricks help in daily life?
Ans. Math tricks can greatly assist in daily life by making mental calculations faster and easier. For instance, when shopping, you can quickly calculate discounts or total costs without needing a calculator. This skill is also beneficial for budgeting, cooking (when adjusting recipes), and even in games or puzzles where quick math is required. Overall, math tricks enhance not only efficiency but also confidence in handling numerical tasks.
3. Are there specific math tricks for addition and subtraction?
Ans. Yes, there are specific math tricks for addition and subtraction. For addition, one effective technique is to use "making ten" – for example, when adding 8 + 5, you can think of it as 8 + 2 + 3, making it easier to reach 10 first. For subtraction, a useful trick is to adjust the numbers to make them easier to work with; for example, to subtract 19 from 50, you can think of it as 50 - 20 + 1, which simplifies the process.
4. Can I learn math tricks online?
Ans. Absolutely! There are numerous resources available online for learning math tricks, including websites, instructional videos, and interactive apps. Many educational platforms focus on mental math techniques, providing step-by-step guides and practice problems. You can also find forums and communities where learners share tips and tricks, making it easier to learn and apply these techniques effectively.
5. What is the importance of learning math tricks for students?
Ans. Learning math tricks is important for students as it helps build a strong foundation in mathematics. These tricks not only make calculations easier and faster but also foster a deeper understanding of mathematical concepts. Additionally, mastering these tricks can boost students' confidence and reduce math anxiety, ultimately leading to better performance in exams and real-life applications.
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