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: 5×40
    Solution:
    5×40 = 200
    Column vertical calculation:

							5
✖						4	0
							0
					2	0
					2	0	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 53×4
    Solution:
    53×4 = 212
    Column vertical calculation:

						5	3
✖							4
					2	1	2
					2	1	2

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 60×7
    Solution:
    60×7 = 420
    Column vertical calculation:

						6	0
✖							7
					4	2	0
					4	2	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 20×8
    Solution:
    20×8 = 160
    Column vertical calculation:

						2	0
✖							8
					1	6	0
					1	6	0

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 60×8
    Solution:
    60×8 = 480
    Column vertical calculation:

						6	0
✖							8
					4	8	0
					4	8	0

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 30×5
    Solution:
    30×5 = 150
    Column vertical calculation:

						3	0
✖							5
					1	5	0
					1	5	0

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 17×2
    Solution:
    17×2 = 34
    Column vertical calculation:

						1	7
✖							2
						3	4
						3	4

---

>>注：本次最多计算 7 道题。

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