Soal-soal kompetensi numbers and quantitative modifiers (exercise 4)

Practice saying this operation.

1. 8-8 = 0
2. 90 - 1 = 89
3. 9-2 = 7
4. 44-11-2 = 31
5. 4848 - 2424 = 2424
6. 980-7 = ....
7. 789,897-231,124=..
8. 101-99 = ....
9. 1,001 -990 = ....
10. 3,333,333 -901,579 =