(a) Simply `4/5 times 4/5 times 4/5 times 4/5`

Evaluate: (-3) times (-4) times (-5) times (-6) times 7

Simplify the following : 4/5 times 2""3/8-2 times 3/5

Evaluate a^(7)times b^(7)times c^(-4)times c^(5)times d^(9)

Starting from (-5) times 4 , find (-5) times (-3) .

Evaluate: (5 times (-4) times (-6))/(-3)

The product 3 1/7xx1 5/6xx1 2/5xx1 1/(11) is equal to (a) 5 8/5 (b) 5 4/5 . (c) 8 4/5 (d) 4 4/5

If a die is thrown 7 times, then the probability of obtaining 5 exactly 4 times is

For the fractions given below : (a) Multiply and reduce the product to lowest form (if possible) (b) Tell whether the fraction obtained is proper or improper. (c) If the fraction obtained is improper then convert it into a mixed fraction. (i) 2/5 xx (5) 1/4 (ii) (6) 2/5 xx 7/9 (iii) 3/2 xx (5) 1/3 (iv) 5/6 xx (2) 3/7 (v) (3) 2/5 xx 4/7 (vi) (2) 3/5 xx 3 (vii) (2) 3/5 xx 3 (viii) (3) 4/7 xx 3/5

Simplify: (a)1 3/4xx 2 2/5xx 3 4/7 (b) 5 5/9-: 3 1/3

Simplify and express each of the following in exponential form: (i) (2^3 xx 3^4 xx 4)/(3 xx 32) (ii) (5^2)^3 xx 5^4 5^7