Overview: 7 questions will be solved this time.Among them
           ☆6 arithmetic calculations
           ☆1 integer calculations

[1/7 Formula]
    Work: Calculate the value of equation 25×68×4 .
    Question type: Mathematical calculation
    Solution:
          25×68×4
        =1700×4
        =6800
    Answer:25×68×4=6800
[2/7 Formula]
    Work: Calculate the value of equation 50×32×125 .
    Question type: Mathematical calculation
    Solution:
          50×32×125
        =1600×125
        =200000
    Answer:50×32×125=200000
[3/7 Formula]
    Work: Calculate the value of equation 328×57+672×57 .
    Question type: Mathematical calculation
    Solution:
          328×57+672×57
        =18696+672×57
        =18696+38304
        =57000
    Answer:328×57+672×57=57000
[4/7 Formula]
    Work: Calculate the value of equation 64×125×125 .
    Question type: Mathematical calculation
    Solution:
          64×125×125
        =8000×125
        =1000000
    Answer:64×125×125=1000000
[5/7 Formula]
    Work: Calculate the value of equation 21×99+21 .
    Question type: Mathematical calculation
    Solution:
          21×99+21
        =2079+21
        =2100
    Answer:21×99+21=2100
[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 45×201
    Solution:
    45×201 = 9045
    Column vertical calculation:

								4	5
✖							2	0	1
								4	5
							0	0
						9	0
						9	0	4	5

[7/7 Formula]
    Work: Calculate the value of equation 23×1+23×99 .
    Question type: Mathematical calculation
    Solution:
          23×1+23×99
        =23+23×99
        =23+2277
        =2300
    Answer:23×1+23×99=2300

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>>注：本次最多计算 7 道题。

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