Question

please answer fast

i will mark as brainliest
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Answer 1

Answer:

CONCEPT BASED ON KNOWING NUMBERS.

Step-by-step explanation:

1) X , I

2) V , L

3) SUCCESSOR NUMBER

4) DESCENDING NUMBER

5) SMALLER NUMBER

6) BIGGER NUMBER

7) 9,99,999

8) 1,00,000

9) 99,99,999

10) 10,00,000

11) 2

12) 8000

13) 460

14) 3800

15) 2000