Topic 1 Review

Which is the value of $$12^4$$  ?

Which is the value of $$\left(-3\right)^4$$  ?

Which is the value of the expression $$5^{3\ }-\ \left(12\ \times\ 2\right)+14\ \div7=$$  

Which is the value of the expression $$9\ \times\ \left(-4\right)\ \div6\ -7=$$  

What is the value of the expression $$3\ +5^2\ +\left|-6\right|\$$  ?

Which is the value of the expression $$\left(-14\right)\ +8-\left(-4\right)=$$  

The temperatures on mars vary from -123 degree celsius to -90 degree celsius. Find the difference between the maximum and minimum temperatures. (absolute value is the answer)

The temperature in Antartica started -30 degrees celsius. By noon, the temperature had risen 7 degrees and then by night time, the temperature had fallen 5 degrees. What is the temperature by nighttime?

Evaluate the expression $$\frac{x^2}{y^2}$$  if x=-10 and y=5