Question

1. Find the value of
(i) 3276×3 - 3276×2
(ii) 8964 × 1 + 99 × 8964
(iii) 1695 × 678 – 695 × 678
(iv) 2314 × 9 + 2314

2. Simplify
(i) {(-24) ÷(-6)}+5
(ii) (-42) ÷ {(-8) + (-6)}
(iii) (-32) ÷ {(-12) +8}

3. In a class test containing 10 questions,4 marks are given for every correct answer and (-2) marks are given for every incorrect answer.

(i)Ram attempts all questions but only 8 of his answers are correct. What is his total score?

(ii)Rohan also attempts all questions but gets only 6 answers correct. What will be his score?

Answer 1

Answer:

1.

(i) 3276

(ii) 896400

(iii) 678000

(iv) 23140

                                         

2.

(i) {(-24) ÷(-6)}+5

{-24 ÷ (-6)} + 5

= 4 + 5

= 9

(ii) (-42) ÷ {(-8) + (-6)}

-42 ÷ {-8 + (-6)}

-42 ÷ (-14)

= 3

(iii) (-32) ÷ {(-12) +8}

-32 ÷ {-12 + 8}

-32 ÷ {-4}

=8

                                         

im sorry but i dont know the 3rd one =(