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Followthepattern\textbf{Follow the pattern}Follow the pattern

10\mathbf{10}10

10:100\mathbf{10 : 100}10:100

15\mathbf{15}15

15:100\mathbf{15 : 100}15:100

20\mathbf{20}20

???

20:100\mathbf{20 : 100}20:100

1

10:100\mathbf{10 : 100}10:100

2

Check

∣\duocursor∣

789()456×÷123+-0.%=