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All questions of Calculation, Addition and Subtraction for Year 5 Exam

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Why is division often checked by multiplication?
  • a)
    It eliminates the need for remainders
  • b)
    Division does not require checks
  • c)
    To confirm the accuracy of the result
  • d)
    It is a faster method
Correct answer is option 'C'. Can you explain this answer?

Tutorpedia Coaching answered
Division is often checked by multiplication to confirm the accuracy of the result. By multiplying the quotient by the divisor and adding the remainder, one can verify that the original dividend is obtained. This method is essential for ensuring that calculations are correct, particularly in complex division problems.

How can regrouping help in addition?
  • a)
    It changes the numbers being added
  • b)
    It complicates the addition process
  • c)
    It allows for easier addition of larger numbers
  • d)
    It is only used in subtraction
Correct answer is option 'C'. Can you explain this answer?

Stoneridge Institute answered
Regrouping helps in addition by allowing for easier addition of larger numbers. For instance, when adding 4,350 and 654, regrouping the second number into 600, 50, and 4 can make it simpler to add to 4,350. This technique helps manage carrying over values and can make calculations more straightforward, especially with larger digits.

What is an example of a mental method in calculations?
  • a)
    Estimating sums or differences in your head
  • b)
    Grouping numbers for column addition
  • c)
    Writing down every step of a large multiplication
  • d)
    Using calculators for complex equations
Correct answer is option 'A'. Can you explain this answer?

Vp Classes answered
An example of a mental method in calculations is estimating sums or differences in your head. This technique allows individuals to quickly assess and compute simple arithmetic problems without the need for paper or calculators, enhancing speed and efficiency in everyday math scenarios.

What is the benefit of understanding the order of operations in mathematics?
  • a)
    It allows skipping steps
  • b)
    It is not necessary for simple problems
  • c)
    It complicates the calculation process
  • d)
    It helps in solving equations correctly
Correct answer is option 'D'. Can you explain this answer?

Vp Classes answered
Understanding the order of operations in mathematics is beneficial because it helps in solving equations correctly. This framework ensures that calculations are performed in the right sequence, preventing errors and misinterpretations in mathematical expressions. Mastery of this concept is fundamental to progressing in more advanced mathematics.

What is the primary advantage of using the column method in multiplication?
  • a)
    It avoids carrying over numbers entirely
  • b)
    It allows for the multiplication of single-digit numbers only
  • c)
    It eliminates the need for estimation
  • d)
    It organizes numbers vertically for clearer calculation
Correct answer is option 'D'. Can you explain this answer?

Stoneridge Institute answered
The primary advantage of using the column method in multiplication is that it organizes numbers vertically, which makes it clearer and easier to handle calculations involving carrying over. This method helps prevent mistakes and ensures that all parts of the numbers are correctly aligned with their respective place values during the multiplication process.

Which operation has priority over addition and subtraction according to the order of operations?
  • a)
    Grouping
  • b)
    Subtraction
  • c)
    Multiplication
  • d)
    Addition
Correct answer is option 'C'. Can you explain this answer?

Edgy Education answered
Multiplication has priority over addition and subtraction according to the order of operations. This means that in an expression involving all three operations, multiplication must be performed first to ensure an accurate result. This principle is important in maintaining consistency and accuracy in mathematical calculations.

What is the purpose of estimation in addition and subtraction calculations?
  • a)
    To simplify calculations by predicting approximate results
  • b)
    To eliminate the need for regrouping
  • c)
    To make calculations more complex
  • d)
    To find the exact answer without any rounding
Correct answer is option 'A'. Can you explain this answer?

Freak Artworks answered
Estimation in addition and subtraction is used to simplify calculations by predicting approximate results. For example, rounding numbers helps to quickly gauge whether the final answer is reasonable, which can be especially useful in mental math scenarios. It allows people to quickly assess the magnitude of the result without computing the exact figures, which can be helpful for checking the reasonableness of more detailed calculations.

Chapter doubts & questions for Calculation, Addition and Subtraction - Year 5 Mathematics IGCSE (Cambridge) 2025 is part of Year 5 exam preparation. The chapters have been prepared according to the Year 5 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Year 5 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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