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: 80×2
    Solution:
    80×2 = 160
    Column vertical calculation:

						8	0
✖							2
					1	6	0
					1	6	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 25×10
    Solution:
    25×10 = 250
    Column vertical calculation:

							2	5
✖							1	0
							0	0
						2	5
						2	5	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 26×50
    Solution:
    26×50 = 1300
    Column vertical calculation:

							2	6
✖							5	0
							0	0
					1	3	0
					1	3	0	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×20
    Solution:
    36×20 = 720
    Column vertical calculation:

							3	6
✖							2	0
							0	0
						7	2
						7	2	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 80×20
    Solution:
    80×20 = 1600
    Column vertical calculation:

							8	0
✖							2	0
							0	0
					1	6	0
					1	6	0	0

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 25×100
    Solution:
    25×100 = 2500
    Column vertical calculation:

								2	5
✖							1	0	0
								0	0
							0	0
						2	5
						2	5	0	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 26×500
    Solution:
    26×500 = 13000
    Column vertical calculation:

								2	6
✖							5	0	0
								0	0
							0	0
					1	3	0
					1	3	0	0	0

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>>注：本次最多计算 7 道题。

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