Track / Stage 4 / 22 of 340 #282 of 1964

1. What is the total sum of the numbers 1966, 1976, 1986, 1996, and 2006?

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Official solution

1.【Solution】 1986 is the average of these five numbers, so the sum $=1986 \times 5=9930$.

Source: NuminaMath-1.5, licensed Apache-2.0. Statement and solution reproduced as published; topic, difficulty and ordering added by this site.