Work Out the following Sums
1. In a class Test Contaaining 10 Questions,Five marks are given for every correct answer and -2 marks are given for every incorrect answer and 0 for not attempting.
i. Karan attempts all questions but only 6 questions are correct. What is his score?
ii. Radhika gets 6 correct and 5 incorrect answers . What is her score?
2. Evaluate the following?
a. 7-8 ÷ (-2)+3 x(-4)
b. 18 ─ [ 3 + { 8÷ ( 5 ─ 3 of 2 + 3 ) } ]
3. Write 5 pairs of Intergers (a,b) such that a÷ b = -3 Eg:(-6,2)
4. The temperature at the noon was 10 degree centigrade above 0. It descends by 2 degree centigrade per hr until mid-night , at what time would the temperature be 8 degree centigrade below zero? what would be the temperature at midnight?
5. List out the properties that multiplication of integers satisfy?Give example for each.
6. List out the properties that division of integers do not follow?
1. In a class Test Contaaining 10 Questions,Five marks are given for every correct answer and -2 marks are given for every incorrect answer and 0 for not attempting.
i. Karan attempts all questions but only 6 questions are correct. What is his score?
ii. Radhika gets 6 correct and 5 incorrect answers . What is her score?
2. Evaluate the following?
a. 7-8 ÷ (-2)+3 x(-4)
b. 18 ─ [ 3 + { 8÷ ( 5 ─ 3 of 2 + 3 ) } ]
3. Write 5 pairs of Intergers (a,b) such that a÷ b = -3 Eg:(-6,2)
4. The temperature at the noon was 10 degree centigrade above 0. It descends by 2 degree centigrade per hr until mid-night , at what time would the temperature be 8 degree centigrade below zero? what would be the temperature at midnight?
5. List out the properties that multiplication of integers satisfy?Give example for each.
6. List out the properties that division of integers do not follow?
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