2) Write 354.05 in expanded form.

(a)  

3) Find the product, using suitable property

625 × (–35) + (– 625) × 65

(a)  

4) Write a pair of integers whose sum is ̶ 12.

5) Find the value of [(–36) ÷ 12] ÷ 3

(a)  

6) Find the product of the following.

a) ( ̶ 18) x ( ̶ 10) x 5

b) 9 x ( ̶ 3) x ( ̶ 7)

 7) Solve: 

 a)   $\frac{8}{11}\ -\ \frac{4}{7}\ \$            

 b)    $\frac{6}{13}\ +\ \frac{2}{5}\ \$  

8) Verify the following and name the property.

12 × [5 + (– 8)] = [12 × 5] + [12 × (– 8)]

12 × [5 + (– 8)] = [12 × 5] + [12 × (– 8)] = (a)  

9) Find

a) 62.1 x 2.3

b) 36.56 ÷ 8

10) Solve

a)   $\frac{5}{7}\ \times\ 2\ \frac{1}{3}$                 

b)   $\frac{4}{9}\ \div\ \frac{2}{3}$  

11) In a quiz, team A scored – 40, 10, 0 and team B scored 10, 0, – 40 in three successive rounds. Which team scored more? Can we say that we can add integers in any order?

12) In a class test containing 10 questions, 5 marks are awarded for every correct answer and (–2) marks are awarded for every incorrect answer and 0 for questions not attempted.

(i) Mohan gets four correct and six incorrect answers. What is his score?

(ii) Heena gets two correct and five incorrect answers out of seven questions she attempts. What is her score?