Overview: 7 questions will be solved this time.Among them
☆7 integer calculations
[1/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 590+500 Solution:
590+500 =
1090 Column vertical calculation:
[2/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 610-200 Solution:
610-200 =
410 Column vertical calculation:
[3/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 670-400 Solution:
670-400 =
270 Column vertical calculation:
[4/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 190+500 Solution:
190+500 =
690 Column vertical calculation:
[5/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 650+300 Solution:
650+300 =
950 Column vertical calculation:
[6/7 Integer column vertical calculation]
Question type: Integer addition
Original question: 390+600 Solution:
390+600 =
990 Column vertical calculation:
[7/7 Integer column vertical calculation]
Question type: Integer subtraction
Original question: 890-400 Solution:
890-400 =
490 Column vertical calculation:
>>注:本次最多计算 7 道题。
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