How do u count by ones from 368 to 500 and change for larger unit when necessary

We need to count ones from 368 to 500.

Note: The digits of ones place are 0,1,2,3,4,5,6,8,9.

But when we count ones from 368 we will count 1 to 9 from number 368 because after 9 we gets 10 and that is tens.

On counting 368 till next 9 ones, we get --> 368+9 ones = 377.

Now again we will count next 9 ones from 377, we get --> 377+ 9 ones = 386

On keep going by this process, we will get following steps of counting onces.

386 + 9 ones = 395.

395 + 9 ones = 404.

404 + 9 ones = 413.

413 + 9 ones = 422.

422 + 9 ones = 431.

431 + 9 ones = 440

440 + 9 ones = 449.

449 + 9 ones = 458.

458 + 9 ones = 467.

467 + 9 ones = 476.

476 + 9 ones = 485.

485 + 9 ones = 494.

494 + 6 ones = 500.

In simple way, we can say that 386 + (12 * 9 + 6) ones = 500.

It can be read as after 386 counting 12 times 9 onces and one time 6 ones, we get 500.

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,