Practice 01

Exponents and powers

1.If 2^n-7x 5^n-4  = 1250 find the value of n.

2.Evaluate (-16)x12 + (-16) x 8

3.Add the product of (-16) and (-9) to the quotient of (-132) by 6

4.The sum of two integers is -6 .If one of them is -2 then the other is ?

5.What must be subtracted from -7 to obtain -15 ?