math revision quiz

the simplest form of
 $4\ X\ \left(10\ -\ 6\right)^2$  is ...................

• 64

• 46

• 6.4

• 4.6

 $\frac{8m^4n^2}{40\ m\ n}$  

the simplest form of

•  $\frac{n\ m^3}{5}$  

•  $\frac{n\ m\ }{5}$  

•  $\frac{5}{\ m\ n\ }$  

•  $\frac{n^2m^2}{5}$  

 $\sqrt{144}$   = ...................

• 12

• 21

• 1.2

• 2.1

 $\left(c^3\right)^5$  = ................

•  $c^8$  

•  $c^{15}$  

•  $c^2$  

•  $c^{-2}$  

the LCM for 12 , 18 is .............

• 24

• 36

• 12

• 18

 $if\ \ x\ -\ \frac{2}{3}\ =\ \frac{4}{9}\ ,\ then\ x\ =\ ............$  

•  $\frac{10}{9}$  

•  $\frac{9}{10}$  

•  $\frac{2}{5}$  

•  $\frac{3}{5}$  

 $if\ 3b\ =\ \frac{4}{7}$   , then b = ..........

•  $\frac{21}{4}$  

•  $\frac{4}{21}$  

•  $\frac{4}{7}$  

•  $\frac{7}{4}$  

 $\left(\ -2.5\right)^3\ =\ .........$  

• - 15.265

• -15.625

• -15.526

• -15.256

area of parallelogram = ....................

• base X height

• $\frac{1}{2}$ X base X height

• base X corresponding height

• $\frac{1}{2}$ X base X corresponding height

the surface area of a sphere whose radius is 9 in is ..............

• $324\pi$ $in^2$

• $243\pi$ $in$

• $324\pi\ in$

• 324