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

[1/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 33×5
    Solution:
    33×5 = 165
    Column vertical calculation:

						3	3
✖							5
					1	6	5
					1	6	5

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 59×4
    Solution:
    59×4 = 236
    Column vertical calculation:

						5	9
✖							4
					2	3	6
					2	3	6

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 94×5
    Solution:
    94×5 = 470
    Column vertical calculation:

						9	4
✖							5
					4	7	0
					4	7	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 54×5
    Solution:
    54×5 = 270
    Column vertical calculation:

						5	4
✖							5
					2	7	0
					2	7	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 95×4
    Solution:
    95×4 = 380
    Column vertical calculation:

						9	5
✖							4
					3	8	0
					3	8	0

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 59×4
    Solution:
    59×4 = 236
    Column vertical calculation:

						5	9
✖							4
					2	3	6
					2	3	6

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 91×4
    Solution:
    91×4 = 364
    Column vertical calculation:

						9	1
✖							4
					3	6	4
					3	6	4

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>>注：本次最多计算 7 道题。

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