Question

Find the cubes of the following number by column method 35.

Answer 1

We have to find the cube of 35 using column method. We have: \[a = 3 and b = 5\] 

Column I a3	Column II   \[a = 3 \text{ and } b = 5\]	Column III   \[3 \times a \times b^2\]	Column IV b3
\[3^3 = 27\]	\[3 \times a^2 \times b = 3 \times 3^2 \times 5 = 135\]	\[3 \times a^2 \times b = 3 \times 3^2 \times 5 = 135\]	\[5^3 = 125\]
+15	+23	+ 12	125
42	158	237
42	8	7	5

 

Thus, cube of 35 is 42875.