The formula arranged according to certain rules: 3 + 1,4 + 7,5 + 13,6 + 19 +. Then, what is the 100th formula?

102+595

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1. Write the formula according to the law, 3 1.. 5 7.. 7 13.. 9 19 So what's the 100th formula?
2. Find out the law of the following formula, and fill in the formula completely. 19 + 9x9 = 100
3. The following data 1, 4, 7, 10, 13, 16, 19 ···············································································,
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7. 1 7 13 19 25 what is the 1000th number in this series of numbers
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9. 1 7 13 19 25…… What's the number 1000 On Mathematics
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12. 5,11,19,29 the next number according to the law
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16. There are seven numbers in a row. The average of them is 30. The average of the first three numbers is 28. The average of the last five numbers is 33
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