Overview: 5 questions will be solved this time.Among them
           ☆3 arithmetic calculations
           ☆2 integer calculations

[1/5 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 23*46
    Solution:
    23*46 = 1058
    Column vertical calculation:

							2	3
✖							4	6
						1	3	8
						9	2
					1	0	5	8

[2/5 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 57*35
    Solution:
    57*35 = 1995
    Column vertical calculation:

							5	7
✖							3	5
						2	8	5
					1	7	1
					1	9	9	5

[3/5 Formula]
    Work: Calculate the value of equation 49*36*53 .
    Question type: Mathematical calculation
    Solution:
          49*36*53
        =1764*53
        =93492
    Answer:49*36*53=93492
[4/5 Formula]
    Work: Calculate the value of equation 1+2.49*4 .
    Question type: Mathematical calculation
    Solution:
          1+2.49*4
        =1+9.96
        =10.96
    Answer:1+2.49*4=10.96
[5/5 Formula]
    Work: Calculate the value of equation 3/2+5/3+1/8 .
    Question type: Mathematical calculation
    Solution:
          3/2+5/3+1/8
        =1.5+5/3+1/8
        =1.5+1.666667+1/8
        =1.5+1.666667+0.125
        =3.166667+0.125
        =3.291667
    Answer:3/2+5/3+1/8=3.291667

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