Overview: 3 questions will be solved this time.Among them
☆3 integer calculations
[1/3 Integer column vertical calculation]
Question type: Integer addition
Original question: 420+600 Solution:
420+600 =
1020 Column vertical calculation:
[2/3 Integer column vertical calculation]
Question type: Integer addition
Original question: 560+100 Solution:
560+100 =
660 Column vertical calculation:
[3/3 Integer column vertical calculation]
Question type: Integer addition
Original question: 400+600 Solution:
400+600 =
1000 Column vertical calculation:
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