In which property, can we rearrange values?

First find, the total money he would earned in one day and then find the total money he would earned in 30 days.

In which property, do we partition numbers?

Think about the difference between two consecutive numbers.

Here, the pattern is decreasing by 50

5 \\(\\times\\) 6\\(\\times\\) ( 8\\(\\times\\) 9 + 8\\(\\times\\)12) = 5,040

Think of distributive property of whole numbers.

Think any number, which gave you the same number as an answer after addition.

The smallest number that can be shown as a rectangles in dots pattern is 6, we can represent it as either a rectangle of 2 rows and 3 columns or 3 rows and 2 columns.

we can further add two more dots each time in rows or columns acccordingly, to get next numbers.