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: 21×8
    Solution:
    21×8 = 168
    Column vertical calculation:

						2	1
✖							8
					1	6	8
					1	6	8

[2/7 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

[3/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 6×50
    Solution:
    6×50 = 300
    Column vertical calculation:

							6
✖						5	0
							0
					3	0
					3	0	0

[4/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 15×9
    Solution:
    15×9 = 135
    Column vertical calculation:

						1	5
✖							9
					1	3	5
					1	3	5

[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 76×8
    Solution:
    76×8 = 608
    Column vertical calculation:

						7	6
✖							8
					6	0	8
					6	0	8

[6/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 12×4
    Solution:
    12×4 = 48
    Column vertical calculation:

						1	2
✖							4
						4	8
						4	8

[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 32×9
    Solution:
    32×9 = 288
    Column vertical calculation:

						3	2
✖							9
					2	8	8
					2	8	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！