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: 70×7
    Solution:
    70×7 = 490
    Column vertical calculation:

						7	0
✖							7
					4	9	0
					4	9	0

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 10×7
    Solution:
    10×7 = 70
    Column vertical calculation:

						1	0
✖							7
						7	0
						7	0

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 30×7
    Solution:
    30×7 = 210
    Column vertical calculation:

						3	0
✖							7
					2	1	0
					2	1	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 22×4
    Solution:
    22×4 = 88
    Column vertical calculation:

						2	2
✖							4
						8	8
						8	8

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 62×4
    Solution:
    62×4 = 248
    Column vertical calculation:

						6	2
✖							4
					2	4	8
					2	4	8

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 12×8
    Solution:
    12×8 = 96
    Column vertical calculation:

						1	2
✖							8
						9	6
						9	6

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 4×80
    Solution:
    4×80 = 320
    Column vertical calculation:

							4
✖						8	0
							0
					3	2
					3	2	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！