Maths homework
Q1)Answer the following
Write down the pairs of integers whose
1)sum is -3
2)sum is 0
3)Difference is 2
Q2) In a class test containing 15 questions 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer:
1). Arun attempts all questions but only 9 of his answers are correct. What is his final Score?
2). One of his friend get only 5 correct. What will be his score?
3) eighteen integers are multiplied together what will be the sign of product if
1) 15 of them are negative and 3 are positive?
2) 9 of them are positive and the remaining are negative
3) All are negative
Q4) evaluate by applying suitable property
1) 1920×101-1920
2) 625 ×9 +625
Q5) Arrange the following fractions in ascending order.
5/12, 9 /16, 2/3, 3/4
Answers
Answer:
1 . -5+(+2)= -3
2 . +1 - (-1)=0
3 . +7 - (-5)= 2
Q2 . 1 . correct answer marks = 36 , wrong answer marks = 12
2 . correct answer marks = 20 , wrong answer marks = 20
3 . +
1 . -12
2 . - 6 are negative
3 . -18
Q4 . 1 . closure property. answer = 192000
2 . closure property. answer = 5265
Q5. 3/4,2/3,9/16,5/12
Step-by-step explanation:
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Answer:
In a class test containing 15 questions 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer:
In a class test containing 15 questions 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer:1). Arun attempts all questions but only 9 of his answers are correct. What is his final Score?
In a class test containing 15 questions 4 marks are given for every correct answer and (-2) marks are given for every incorrect answer:1). Arun attempts all questions but only 9 of his answers are correct. What is his final Score?2). One of his friend get only 5 correct. What will be his score?
Step-by-step explanation:
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