Does order matter with the Japanese number system?

The Japanese use the Arabic numerals as well as the Chinese numerals. In the vertical written pages it's usually Chinese numerals ( in novels etc ), the order is top to bottom, and since they are decimal numerals, have the same meaning , ie, 100's 10's 1's.

In most contemporary usage, Arabic numerals are used, in which case it has the same order rules as in North America. ( left to right, 100's 10's 1's etc )

Some mixed uses appear, such as in restaurants where Arabic numerals are written top to bottom to indicate prices