Overview: 6 questions will be solved this time.Among them
           ☆2 equations
           ☆2 arithmetic calculations
           ☆2 integer calculations

[ 1/6 Equation]
    Work: Find the solution of equation [12+4i]-[-5+17i] = 0 .
    Question type: Equation
    Solution:Original question:

(

12

+

4

i

)

−

(

-

5

+

17

i

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

12

+

4

i

−

(

-

5

+

17

i

)

=

12

+

4

i

+

5

−

17

i

=

17

−

13

i

    The equation is transformed into :

17

−

13

i

=

0

    Transposition :

-

13

i

=

0

−

17

    Combine the items on the right of the equation:

-

13

i

=

-

17

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :

17

=

13

i

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :

13

i

=

17

    The coefficient of the unknown number is reduced to 1 :

i

=

17

÷

13

=

17

×

1 13

    We obtained :

i

=

17 13

    This is the solution of the equation.

    Convert the result to decimal form :

i

=

1.307692

[2/6 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 16-14
    Solution:
    16-14 = 2
    Column vertical calculation:

			1	6
➖			1	4
			0	2

[3/6 Formula]
    Work: Calculate the value of equation -12+16 .
    Question type: Mathematical calculation
    Solution:
          -12+16
        =4
    Answer:-12+16=4
[4/6 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 5-8
    Solution:
    5-8 = - (8 - 5) = - 3
    Column vertical calculation:

			8
➖			5
			3

[5/6 Formula]
    Work: Calculate the value of equation 14-(-10) .
    Question type: Mathematical calculation
    Solution:
          14-(-10)
        =14-(-10)
        =24
    Answer:14-(-10)=24
[ 6/6 Equation]
    Work: Find the solution of equation [-1+i]-[-4-2i] = 0 .
    Question type: Equation
    Solution:Original question:

(

-

1

+

i

)

−

(

-

4

−

2

i

)

=

0

    Remove the bracket on the left of the equation:

Left side of the equation =

-

1

+

i

−

(

-

4

−

2

i

)

=

-

1

+

i

+

4

+

2

i

=

3

+

3

i

    The equation is transformed into :

3

+

3

i

=

0

    Transposition :

3

i

=

0

−

3

    Combine the items on the right of the equation:

3

i

=

-

3

    The coefficient of the unknown number is reduced to 1 :

i

=

-

3

÷

3

=

-

3

×

1 3

=

-

1

×

1

    We obtained :

i

=

-

1

    This is the solution of the equation.

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