ik how to do the calculation but 36 doesn't come in 5's table (the table I'm using to cancel) so i don't know how to cancel 150

Question

Citrus2011 [14]

3 years ago

11

ik how to do the calculation but 36 doesn't come in 5's table (the table I'm using to cancel) so i don't know how to cancel 150

by 360 thus i can't find the angles for it

Mathematics

1 answer:

tigry1 [53] · Answer 1 · 2022-09-04T04:40:52+03:00

Answer:Take as an example

Step-by-step explanation:

7,203 x 6,892. If I want to know that exactly, then I reach for Mathematica (or if I absolutely have to, I reach for pencil and paper to apply multiplication in columns). But often I just need a rough answer, so I mentally convert this to 7,000 x 7,000 = 7 x 7 x 1,000 x 1,000 = 49,000,000. More formally I am converting the numbers the nearest approximation of the form k x 10n where k ∈ {the set of numbers for which I know times tables}. Then I use the times tables on the remaining significant digits and implicitly use the 10 times table to get the magnitude right. In this case the real answer is: