Subtract: (i) `46. 23\ -\ 37. 5\ =` (ii) `128. 4\ -\ 53. 05\ =\ ` (iii) `45. 03\ -\ 27. 80\ =` (iv) `23. 93\ -\ 5. 946\ =`

Find the value of: (i) 9. 756-6. 28 (ii) 21. 05\ -\ 15. 27 (iii) 18. 5\ -\ 6. 79 (iv) 48. 1\ -\ 0. 37

Multiply : (i) 3/4\ by\ 5/7\ (ii) \ 3/7\ by\ ((-4)/5)\ (iii) \ ((-5)/9)\ by\ 4\ (iv) ((-36)/7)\ by\ (-(28)/9)

Subtract: (i) 4 from 9 (ii) -4 from 7 (iii) 3 from -8 (iv) -9 from -5

Which is greater? (i) 0.5 or 0.05 (ii) 0.7 or 0.5 (iii) 7 or 0.7 (iv) 1.37 or 1.49 (v) 2.03 or 2.30 (vi) 0.8 or 0.88.

Find the cube of : (i) 2 2/5 (ii) 3 1/4 (iii) 0. 3 (iv) 1. 5

Evalaute: (i) 7/12 + -4/3 , (ii) -12/25 + -5/6 , (iii) -27/32 + (-9/16) (iv) -18 + 6/5 , (v) 26 + (-1/13) (vi) 1/25 + -5

Find: (i) 0.2 xx 6 (ii) 8 xx 4.6 (iii) 2.71 xx 5 (iv) 20.1 xx 4 (v) 0.05 xx 7 (vi) 211.02 xx 4 (vii) 2 xx 0.86

Find : (a) 1/2 of (i) 24 (ii) 46 (b) 2/3 of (i) 18 (ii) 27 (c) 3/4 of (i) 16 (ii) 36 (d) 4/5 of (i) 20 (ii) 35

Add the following rational numbers: (i) -2/3 and 3/4 , (ii) -4/9 and 5/6 , (iii) -5/18 and 11/27 (iv) -7/12 and -5/24 , (v) -1/18 and -7/27 , (vi) 21/(-4) and -11/8

For each of the graphs given in Fig. 4.5 select the equation whose graph it is from the choices given below:(a) For Fig 4.5(i)(i) x + y = 0 (ii) y = 2x (iii) y = x (iv) y = 2x + 1 (b) For fig 4,5(ii)(i) x + y = 0 (ii) y = 2x (iii) y = 2x + 4 (iv) y = x - 4