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: 16×48
    Solution:
    16×48 = 768
    Column vertical calculation:

							1	6
✖							4	8
						1	2	8
						6	4
						7	6	8

[2/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 15×23
    Solution:
    15×23 = 345
    Column vertical calculation:

							1	5
✖							2	3
							4	5
						3	0
						3	4	5

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 56×29
    Solution:
    56×29 = 1624
    Column vertical calculation:

							5	6
✖							2	9
						5	0	4
					1	1	2
					1	6	2	4

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 72×23
    Solution:
    72×23 = 1656
    Column vertical calculation:

							7	2
✖							2	3
						2	1	6
					1	4	4
					1	6	5	6

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 36×56
    Solution:
    36×56 = 2016
    Column vertical calculation:

							3	6
✖							5	6
						2	1	6
					1	8	0
					2	0	1	6

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 42×28
    Solution:
    42×28 = 1176
    Column vertical calculation:

							4	2
✖							2	8
						3	3	6
						8	4
					1	1	7	6

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 64×87
    Solution:
    64×87 = 5568
    Column vertical calculation:

							6	4
✖							8	7
						4	4	8
					5	1	2
					5	5	6	8

---

>>注：本次最多计算 7 道题。

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