# Big Numbers Logic

English Public

A correspondance between Japanese and English for big numbers: 10K up to a U.S trillion.

Base units formulas:

Man (万) : 10,000 (10K)

Oku (億) : 100,000,000 (100M)

Choo (兆) : 1,000,000,000,000 (1T)

Gotta simply multiply the base unit by the appended number: Juu (十) : 10, Hyaku (百) : 100 or Sen (千) : 1,000.

It's easier to do the math when multiplying by 10 step by step.

Examples

千万 (Ten million) would be

Man is 10K, x10 = 100K, x10 = 1M, x10 = 10M

十億 (A billion) would be

Oku is 100M, x10 = 1B

When translating big numbers (over 1K) from Jap to Eng or vice versa goes like this

1 - Identify where we are in terms of Man, Oku or Choo units. （...）

2 - Regroup the number into groups of 4 digits instead of 3, or alternatively (...)

Also make sure to say the leading number integrally before appending Man, Oku or Choo.

Examples (...)

3 - Make sure to read the subsequent portions accordingly. For example, Sen comes after Man, Man after Oku, Oku after Choo, etc. (...) Examples (...)

Examples (Eng to Jap)

17,845 regroups in 4 digits as 1,7845, or since we know it's Man, we'll take the first digit as the Man unit (since the multiplier here is 1 and there's only digit), so 一万七千八百四十五 (Ichi-man, nana sen, happyaku, yon-juu, go) - A common mistake here would've been to skip the unit regrouping part and start by translating 17 (じゅうなな / Juu-nana)

Base units formulas:

Man (万) : 10,000 (10K)

Oku (億) : 100,000,000 (100M)

Choo (兆) : 1,000,000,000,000 (1T)

Gotta simply multiply the base unit by the appended number: Juu (十) : 10, Hyaku (百) : 100 or Sen (千) : 1,000.

It's easier to do the math when multiplying by 10 step by step.

Examples

千万 (Ten million) would be

Man is 10K, x10 = 100K, x10 = 1M, x10 = 10M

十億 (A billion) would be

Oku is 100M, x10 = 1B

When translating big numbers (over 1K) from Jap to Eng or vice versa goes like this

1 - Identify where we are in terms of Man, Oku or Choo units. （...）

2 - Regroup the number into groups of 4 digits instead of 3, or alternatively (...)

Also make sure to say the leading number integrally before appending Man, Oku or Choo.

Examples (...)

3 - Make sure to read the subsequent portions accordingly. For example, Sen comes after Man, Man after Oku, Oku after Choo, etc. (...) Examples (...)

Examples (Eng to Jap)

17,845 regroups in 4 digits as 1,7845, or since we know it's Man, we'll take the first digit as the Man unit (since the multiplier here is 1 and there's only digit), so 一万七千八百四十五 (Ichi-man, nana sen, happyaku, yon-juu, go) - A common mistake here would've been to skip the unit regrouping part and start by translating 17 (じゅうなな / Juu-nana)

by Medyrius

### Vocabulary List

- 万まんTen thousandnew50703
- 万まんTen thousandnew50702
- 十万じゅうまんA hundred thousand (10 x 10,000)new50701
- 百万ひゃくまんA million (100 x 10,000)new50700
- 千万せんまんTen million (1,000 x 10,000)new50699
- 億おくA hundred millionnew50698
- 十億じゅうおくA billion (10 x 100,000,000)new50697
- 百億ひゃくおくTen billion (100 x 100,000,000)new50696
- 千億せんおくA hundred billion (1,000 x 100,000,000)new50695
- 兆ちょうA trillion (U.S)new50694