Question

Question 1. What is the value of (-21)-[(-23)-(-17)-(-21)].


Question 2. What should be subtracted from -9876 to obtain -9512?


Question 3. Fill in the blanks


i)Sum of integer and
its additive inverse is
____________

ii)Sum of -22 and -44 is
______________

iii) -36 ÷ (_______)=-9


iv) _________ is absolute
value of -998


Question 4. Verify the following

i) (-22) × [(-4) + (-5)]=[(-22) × (-4)] + [(-22) × (-5)]

ii) (-12) × [(3) + (-9)]=[(-12) × (4)] + [(-12) × (-9)]


Question 5. Evaluate


i) (-100)÷5 ii)(-36)÷(-4) iii)(0)÷(-12)
iv) [(-30)÷5]÷2


Question 6. In a test (+5) marks are given for every correct answer and (-2) marks are given


for every incorrect answer.

i)Radhika answered all the questions and scored 30
marks and get 10 correct .

ii)Jay also answered all the
questions and scored (-12) marks though he got 4 correct.

How many incorrect answers had they attempted?


Question 7. In a test (+5) marks are given for every correct answer and (-2) marks are given

for every incorrect answer and 0 for answer not attempted. Ram gets 3 correct and 4

incorrect out of 7 questions he attempted. What is his score?​

Answer 1

Answer:

1) -36

2)+364

3)-1+1 =0 always 0