Multiplication and Division (Difficult)
10,000 × 100 = 1,000,000.

Multiplication and Division (Difficult)

Symbols are used for multiplication and division in mathematical equations. The x denotes multiplication and the ÷ denotes division. This 11-plus Maths quiz is the last in our series on multiplication and division. Remember to look at all four answers before making your choice. Here's a reminder of two useful tips:

  1. To multiply a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the right by the same number of zeros that are in the multiple of 10. Note: whole numbers that do not have decimal parts are written without a decimal point e.g. 400.0 = 400: in such cases the d.p. is not normally needed.
  2. To divide a number by another number which is a multiple of 10 and whose only non zero digit is the leading digit 1: move the decimal point (d.p.) to the left by the same number of zeros that are in the multiple of 10.
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  1. What is the correct answer to the given calculation?
    18.56 × 100 = ?
    TIP 1. Move the d.p. 2 places to the right to give 1,856
  2. What is the correct answer to the given calculation?
    2,500 ÷ 1,000 = ?
    TIP 2. 2,500 = 2,500.0 Move the d.p. 3 places to the left to give 2.5
  3. What is the correct answer to the given calculation?
    199.09 × 1,000 = ?
    TIP 1. Move the d.p. 3 places to the right to give 199,090
  4. What is the correct answer to the given calculation?
    0.124 ÷ 100 = ?
    TIP 2. Move the d.p. 2 places to the left to give 0.00124
  5. What is the correct answer to the given calculation?
    10,000 × 100 = ?
    TIP 1. 10,000 = 10,000.0 Move the d.p. 2 places to the right to give 1,000,000
  6. What is the correct answer to the given calculation?
    250,000 ÷ 10,000 = ?
    TIP 2. 250,000 = 250,000.0 Move the d.p. 4 places to the left to give 25
  7. What is the correct answer to the given calculation?
    123.608 × 100 = ?
    TIP 1. Move the d.p. 2 places to the right to give 12,360.8
  8. What is the correct answer to the given calculation?
    1.11 ÷ 100 = ?
    TIP 2. Move the d.p. 2 places to the left to give 0.0111
  9. What is the correct answer to the given calculation?
    7.777 × 100 = ?
    TIP 1. Move the d.p. 2 places to the right to give 777.7
  10. What is the correct answer to the given calculation?
    34,567 ÷ 10,000 = ?
    TIP 2. 34,567 = 34,567.0 Move the d.p. 4 places to the left to give 3.4567

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