Multiplying Integers Calculator

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Integers are represented by “ Z”. They can be either positive, negative or zero. But integers cannot be fractions, roots and decimals. Multiplying any integer with 0 results in 0. If the signs of both integers which are multiplied are same then the result is positive, if they have opposite signs then the result is a negative number.
 

Example 1: Find the result of

(a) 4 x – 14
                                             
(b) (3) (-7) (-6)


 

  1. 4 x – 14

Here 4 is a positive number and 14 is a negative number.

Multiplication of a positive integer with a negative integer gives a negative number.

4 times 14 = 56. The result should be negative. So, 4 x -14 = -56

  1. (3) (-7) (-6)

Here 3 is positive and 7 is negative. So, 3 x -7 = -21

Now we replace (3) (-7) with -21. It becomes (-21) (-6)

A negative number multiplied with a negative number gives a positive number.

-21 x – 6 = 126

 

Example 2: The tank has a capacity of 20,000lts. and 500lts. Are taken out each day. What was the amount of water in the tank 2 days ago.

The amount of water in the tank decreases by 500lts. Every day. Going back for two days it equals to - 2 x – 1,000 = 2,000.

Hence in total the amount of water = 20,000 + (-2 x – 1,000)

= 20,000 + 2,000

= 22,000

Therefore the amount of water in the tank 2 days ago is 22,000 lts.
 

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