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: 84×300
    Solution:
    84×300 = 25200
    Column vertical calculation:

								8	4
✖							3	0	0
								0	0
							0	0
					2	5	2
					2	5	2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 253×30
    Solution:
    253×30 = 7590
    Column vertical calculation:

							2	5	3
✖								3	0
							0	0	0
						7	5	9
						7	5	9	0

[3/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 4000÷160
    Solution:
    4000÷160 = 25
    Column vertical calculation:

						2	5
1	6	0	丿	4	0	0	0
				3	2	0
					8	0	0
					8	0	0
							0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 420×50
    Solution:
    420×50 = 21000
    Column vertical calculation:

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

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 171×50
    Solution:
    171×50 = 8550
    Column vertical calculation:

							1	7	1
✖								5	0
							0	0	0
						8	5	5
						8	5	5	0

[6/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 1600÷80
    Solution:
    1600÷80 = 20
    Column vertical calculation:

					2	0
8	0	丿	1	6	0	0
			1	6	0
					0	0
						0
						0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 406×60
    Solution:
    406×60 = 24360
    Column vertical calculation:

							4	0	6
✖								6	0
							0	0	0
					2	4	3	6
					2	4	3	6	0

---

>>注：本次最多计算 7 道题。

Your problem has not been solved here? Please go to the Hot Problems section！