Overview: 5 questions will be solved this time.Among them
☆2 arithmetic calculations
☆2 integer calculations
☆1 calculations of prime factor
[1/5 Digtal analysis]
Work:Break 7 into prime factors.
Question type: Resolving prime factor
Solution:
7=7 *Note: 7 is a prime number.[2/5 Integer column vertical calculation]
Question type: Integer addition
Original question: 7+7 Solution:
7+7 =
14 Column vertical calculation:
[3/5 Formula]
Work: Calculate the value of equation 7+7+7 .
Question type: Mathematical calculation
Solution:
7+7+7
=14+7
=21 Answer:7+7+7=21[4/5 Formula]
Work: Calculate the value of equation 7+7+7+7 .
Question type: Mathematical calculation
Solution:
7+7+7+7
=14+7+7
=21+7
=28 Answer:7+7+7+7=28[5/5 Integer column vertical calculation]
Question type: Integer multiplication
Original question: 7*9 Solution:
7*9 =
63 Column vertical calculation:
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