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Integers Test - 2

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Integers Test - 2
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Simplify: (-6) × (-2) =

    Solution

    -6 × -2 = + 12

     

  • Question 2
    1 / -0

    Simplify: 1× 0 =

    Solution

    The multiplicative identity property states that any time you multiply an integer by 1, the result, or product, is that original number.

    To write out this property using variables, we can say that n × 1 = n. It doesn't matter if n equals to one, one million or 3.566879. The property always hold true. Let us take an integer 0 then,

    0 × 1 = 1 × 0 = 0

    Hence,

    1 × 0 = 0.

     

  • Question 3
    1 / -0

    the |−|−7|−3| is equal to

    Solution

    |−|−7|−3|

    =|−7−3|

    =|−10|

    =10.

     

  • Question 4
    1 / -0

    Given that, [-51 × x] = 204 and  [−33 × y] = −297, then find the value of [–x × y].

    Solution

    Given, −51×x= 204 and −33 × y = −297

    Therefore, x = 204/51 = -4

    and y= -297/-33 = 9

    Thus –x×y=−(−4)×9=36

     

  • Question 5
    1 / -0

    The simplified value of y÷ y of y3÷y2×y5÷y3 is

    Solution

    y4 ÷ yofy3 ÷ y2 × y5 ÷ y3

    = y4 ÷ y×y3 ÷ y2 × y2

    = y4/y× y4/y= 1 × 1 = 1

     

  • Question 6
    1 / -0

    8−[12−(−2×−4(4of−4))] =

    Solution

    8 − [12 − (−2 × −4 (4of−4))]

    = 8 − [12− (−2 × −4 × −16)]

    = 8 − [12− (−128)]

    = 8 − [12 + 128]

    = 8 − 140

    = − 132

     

  • Question 7
    1 / -0

    What is the number to be multiplied by (−7)−1 so as to get 10−1 as the product?

    Solution

    let the number be x According to the question:

    ⇒ (−7)−1 x = 10−1

    ⇒ 1/-7 x = 1/10

    Applying cross multiplication

    ⇒ x = -7/10

     

  • Question 8
    1 / -0

    Simplify to its nearest integer.

    199.989 × 5.011 =?

    Solution

    199.989 × 5.011 = 1002.144 ≈ 1000

     

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