Using appropriate properties find:`-2/3 xx 3/5 + 5/2-3/5 xx1/6`

Find the product of: (-3) xx (-6) xx (-2) xx (-1)

Find : 2.5xx0.3

(b) Find the sum to n terms of the series 1 xx 2 xx 3 + 2 xx 3 xx 4 + 3 xx 4 xx 5 + .. .

Tell what property allows you to compute 1/3 xx (6 xx 4/3) as (1/3 xx 6) xx 4/3

Find the multiplicative inverse of the following: -5/8 xx -3/7

Find the product: (-1) xx (-2) xx (-3) xx4

Find the sum to n terms of the series . 3 xx 1^(2) + 5 xx 2^(2) + 7 xx 3^(2) + . . . . . .

Evaluate (8^-1 xx 5^3 )/ 2^-4

Take any three consecutive odd numbers and find their product, for example 1 xx 3 xx 5 = 15 , 3 xx 5 xx 7 = 105 , 5 xx 7 xx 9=315 and so on. Make three conjuctures about these products.