Q.1 State the sign of the products without actually multiplying the integers

(i) (-8)×(-3)×(-4)×(-6)

(ii) (-5)×(-10)×(-9)

(iii) 1×(-6)×4×(-2)

Q.2 Find the product of following

(i) -18×19

(ii) 100000×1

(iii) (-1)×537

(iv) -11×(-11)×(-11)

Q.3 Find the following products using suitable properties

(i) 725×(-35)+(-725)×65

(ii) 8×67×(-125)×(-1)

(iii) 8225×999+8225