The law of numbers (expressed by formula) 08,10,12, 15,17,19, 22,24,26, 29,31,33, thirty-six

The law of numbers (expressed by formula) 08,10,12, 15,17,19, 22,24,26, 29,31,33, thirty-six

Add 7 down and 2 to the right
The number of row N and column m is 7n + 2m-1

First observe the following groups of formulas, find out the rules, and then fill in the numbers
0 - 14 days and 23 hours to the end of the problem
1+121x9=1090
2+232x9=2090
3+343x9=3090
7+( )x9=( )
Write the rules

7+787x9=7090
The rule is n + NN + 1n x 9 = N090
N is one digit, NN + 1n is three digit, N090 is four digit

Observe the following formula by yourself, find the rule and fill in the number
(1)1＋3＝4＝2²
1＋3＋5＝9＝3²
1＋3＋5＋7＝16＝4²
1＋3＋5＋7＋9＋11＋13＋… ＋19＝( )＝( )²

(1)1＋3＝4＝2²
1＋3＋5＝9＝3²
1＋3＋5＋7＝16＝4²
1＋3＋5＋7＋9＋11＋13＋… ＋19＝(100)＝( 10)²

9 × 9 + 19 = 10099 × 99 + 199 = 10000999 × 999 + 1999 = 1000000 So, 99 992004×99… 992004 + 199 The results of 992004 are as follows______ Zero

After the last addend, there are 2004 9, then the number of 0 at the end of the operation result is: 2004 × 2 = 4008; so the answer is: 4008