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: 11×6
    Solution:
    11×6 = 66
    Column vertical calculation:

						1	1
✖							6
						6	6
						6	6

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 15×3
    Solution:
    15×3 = 45
    Column vertical calculation:

						1	5
✖							3
						4	5
						4	5

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 12×6
    Solution:
    12×6 = 72
    Column vertical calculation:

						1	2
✖							6
						7	2
						7	2

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 23×3
    Solution:
    23×3 = 69
    Column vertical calculation:

						2	3
✖							3
						6	9
						6	9

[5/7 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

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 71×3
    Solution:
    71×3 = 213
    Column vertical calculation:

						7	1
✖							3
					2	1	3
					2	1	3

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 12×2
    Solution:
    12×2 = 24
    Column vertical calculation:

						1	2
✖							2
						2	4
						2	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！