Overview: 7 questions will be solved this time.Among them
           ☆4 arithmetic calculations
           ☆3 integer calculations

[1/7 Formula]
    Work: Calculate the value of equation 373-129+29 .
    Question type: Mathematical calculation
    Solution:
          373-129+29
        =244+29
        =273
    Answer:373-129+29=273
[2/7 Integer column vertical calculation]
    Question type: Integer division
    Original question: 630÷42
    Solution:
    630÷42 = 15
    Column vertical calculation:

				1	5
4	2	丿	6	3	0
			4	2
			2	1	0
			2	1	0
					0

[3/7 Formula]
    Work: Calculate the value of equation 189-(89+74) .
    Question type: Mathematical calculation
    Solution:
          189-(89+74)
        =189-163
        =26
    Answer:189-(89+74)=26
[4/7 Formula]
    Work: Calculate the value of equation 456-(256-36) .
    Question type: Mathematical calculation
    Solution:
          456-(256-36)
        =456-220
        =236
    Answer:456-(256-36)=236
[5/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 102×35
    Solution:
    102×35 = 3570
    Column vertical calculation:

							1	0	2
✖								3	5
							5	1	0
						3	0	6
						3	5	7	0

[6/7 Formula]
    Work: Calculate the value of equation 378+44+114+242+222 .
    Question type: Mathematical calculation
    Solution:
          378+44+114+242+222
        =422+114+242+222
        =536+242+222
        =778+222
        =1000
    Answer:378+44+114+242+222=1000
[7/7 Integer column vertical calculation]
    Question type: Integer multiplication
    Original question: 98×42
    Solution:
    98×42 = 4116
    Column vertical calculation:

							9	8
✖							4	2
						1	9	6
					3	9	2
					4	1	1	6

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>>注：本次最多计算 7 道题。

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