Calculator Usage Tips
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Questions and Answers

What is the result of multiplying 3.7734 by 100?

  • 377.34 (correct)
  • 3.7734
  • 37.734
  • 3773.4

    • What is the result of dividing 32.2 by 10?

  • 322.2
  • 322.0
  • 3.22 (correct)
  • 3.22 (correct)

    • What is the result of multiplying 110 by 500?

  • 5500
  • 550000
  • 5500.0
  • 55000 (correct)

    • What is the result of multiplying 99.67 by 1000?

    <p>99670</p> Signup and view all the answers

    What is the result of multiplying 1.729 by 1000?

    <p>1729</p> Signup and view all the answers

    What is the value of 5 + 6 × (7 – 5)?

    <p>31</p> Signup and view all the answers

    What is the value of 4 × 5 - 10?

    <p>10</p> Signup and view all the answers

    What is the smallest number in the set: 48, 572, 309, 6479, 517, 7?

    <p>7</p> Signup and view all the answers

    What is the largest number in the set: 0.4, 0.303, 0.43, 0.31, 0.44, 0.043?

    <p>0.44</p> Signup and view all the answers

    How much money does Jack have altogether after his grandma gives him £25?

    <p>£31.37</p> Signup and view all the answers

    What is the purpose of using opposite operations in math?

    <p>To check your answer and make sure you haven't made a mistake</p> Signup and view all the answers

    What happens when you add a number to another number and then subtract the same number?

    <p>You get the same number</p> Signup and view all the answers

    How much does Jack have left after spending £8.90 on a new computer game?

    <p>£16.47</p> Signup and view all the answers

    What operation is the opposite of multiplication?

    <p>Division</p> Signup and view all the answers

    What is the result of multiplying 7 by 5?

    <p>35</p> Signup and view all the answers

    What is the next multiple of 7 after 28?

    <p>35</p> Signup and view all the answers

    Why do many people find subtraction and division harder than addition and multiplication?

    <p>Because they are more complex operations</p> Signup and view all the answers

    What is the result of multiplying 3 by 4 and then dividing by 4?

    <p>3</p> Signup and view all the answers

    What is the advice given when using a calculator?

    <p>Do not reach straight for your calculator</p> Signup and view all the answers

    What is the benefit of learning opposite operations?

    <p>It helps with checking answers and making sure you haven't made a mistake</p> Signup and view all the answers

    What is the purpose of splitting big numbers into columns and parts?

    <p>To make the number easier to read</p> Signup and view all the answers

    What is the total amount of money Simon has after stealing 14p from his sister?

    <p>40p</p> Signup and view all the answers

    What is the name of the column that represents the thousands in a number?

    <p>THOUSANDS</p> Signup and view all the answers

    How many coconuts are in the box after Michelle empties all of them?

    <p>12</p> Signup and view all the answers

    What is the purpose of lining up the columns when splitting a number into its parts?

    <p>To make the number easier to read</p> Signup and view all the answers

    What is the value of the 'TENS' column in the number 3 232 594?

    <p>90</p> Signup and view all the answers

    How should you split the number 3 232 594 into its parts?

    <p>3 000 000 + 200 000 + 30 000 + 2 000 + 500 + 90 + 4</p> Signup and view all the answers

    What is the purpose of knowing the names of all the columns when working with whole numbers?

    <p>To make the number easier to read</p> Signup and view all the answers

    What is the term for the process of breaking down a number into its parts?

    <p>Splitting</p> Signup and view all the answers

    What is a factor of a number?

    <p>A number that divides into the original number with no remainder</p> Signup and view all the answers

    What is the HCF of 22, 33, and 110?

    <p>11</p> Signup and view all the answers

    Which of the following numbers is prime?

    <p>41</p> Signup and view all the answers

    What is the purpose of a factor tree?

    <p>To find the prime factors of a number</p> Signup and view all the answers

    What is the factor of 22 that is not a factor of 11?

    <p>2</p> Signup and view all the answers

    What is the number of factors of 110?

    <p>8</p> Signup and view all the answers

    What is the relationship between the factors of 22 and 11?

    <p>11 is a factor of 22</p> Signup and view all the answers

    What is the prime factor of 33?

    <p>3</p> Signup and view all the answers

    Study Notes

    Calculator Tips

    • To avoid mistakes, break down big calculations into smaller stages and show all your working.
    • Don't reach straight for your calculator; instead, do it step by step to get the right answer.

    Ordering Numbers and Place Value

    • Split big numbers into columns and parts to read, write, and order them easily.
    • Learn the names of the columns: millions, thousands, hundreds, tens, and ones.
    • Split a number into its parts, lining up the columns to read the numbers clearly.

    Add, Subtract, Multiply, and Divide

    • Adding and subtracting are opposite operations; use them to check your answers.
    • Start with a number, add or subtract, and then use the opposite operation to get back to the original number.
    • Multiplying and dividing are also opposite operations; use them to check your answers.
    • Start with a number, multiply, and then divide by the same number to get back to the original number.

    Multiplying by 10, 100, 1000, etc.

    • To multiply by 10, 100, 1000, etc., move the decimal point to the right and add zeros if necessary.
    • The number of places you move the decimal point depends on the number of zeros in the multiplier.
    • Multiply by 2, 3, 8, etc., first, and then move the decimal point accordingly.

    Dividing by 10, 100, etc.

    • To divide by 10, 100, 1000, etc., move the decimal point to the left and remove zeros if necessary.
    • The number of places you move the decimal point depends on the number of zeros in the divisor.

    Negative Numbers

    • Numbers less than zero are negative.
    • You can add, subtract, multiply, and divide with negative numbers.

    Factors, HCF, and Prime Numbers

    • The factors of a number are all the numbers that divide into it.
    • Find all the factors of a given number to identify its prime factors.
    • A prime number is a number with only two factors: 1 and itself.
    • Find the HCF (Highest Common Factor) by looking for the highest number that is a factor of all given numbers.

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    KS3 Maths Complete Study & Practice - Foundation PDF 2019, 2021

    Description

    Learn how to effectively use your calculator to get the right answers by breaking down calculations into stages and showing your work.

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