`(-12)xx6-(-12)xx4 = ?`

Simplify: (3/(11)xx5/6)-\ (9/(12)xx4/3)+\ (5/(13)xx6/(15))

Simplify the following : (i) (-7)xx(-5)+6xx(-3)-(-9)xx8 (ii) (-6)xx(-11)xx0-5xx(-12)+(-16)xx4 .

Let's verify: (-2)xx(-5)xx3 +6 =12

Evaluate each of the following products: (-1)xx(-2)xx(-3)xx(-4)xx(-5) (-3) \ xx(-6)xx(-9)xx(-12)

Evaluate each of the following products: (-1)xx(-2)xx(-3)xx(-4)xx(-5) (-3) xx(-6)xx(-9)xx(-12)

(17) xx (-12) + (19) xx (-12) = …….

0.12 xx 12 xx 0.012 = ?

What is the value of : (12 " "of" "6 div 9 + 12 xx 4 -(2xx 4 - 5))/(12 div 3 xx 4 (2 xx 4 - 5)) ?

(-12)xx8xx5-2xx30xx12

Simplify and write in exponential form. a. 5^(89)xx5^(54) b. (-9)^(157)xx9^(23) c. (-7)^(13)xx(-7)^(33) d. 6^(125)xx6^(88) e. (-12)^(255)xx12^(45) f. (-4)^(66)xx(-4)^(44)