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Grade 4 - Mathematics
3.20 Practicing Multiplication, Multiplying with Zeros

  1. Multiply the non zero numbers.
  2. Count the number of zeroes in the factors.
  3. Add the same number of zeroes to the product.
Example: 23x400
  • First multiply 23 and 4, this gives 92.
  • There are 2 zeroes in the question, hence the result is 9,200. Answer: 9,200

    Example: 30 x 400

  • First multiply 3 and 4, this gives 12.
  • There are 3 zeroes, hence the result is 12,000. Answer: 12,000
    Directions: Multiply the following. Also write at least 20 examples of your own.
  • Q 1: 3000 x 9000 =
    27,000
    27,000,000
    2,700,000

    Q 2: 900 x 200 =
    1,800
    18,000
    180,000

    Q 3: 30 x 2000 =
    6,000
    60,000
    600

    Q 4: 40 x 800 =
    320,000
    32,000
    3,200

    Q 5: 30 x 20 =
    60
    600
    6,000

    Q 6: 50 x 50 =
    25,000
    250
    2,500

    Q 7: 30 x 200 =
    600
    6,000
    60,000

    Q 8: 70 x 80 =
    5600
    4200
    490

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    Question 10: This question is available to subscribers only!


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