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$4,000,000$

$$2000+1999\times2000=(1+1999) \times 2000= 2000 \times 2000=4000000 $$

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$$2000+1999\times2000=(1+1999) \times 2000= 2000 \times 2000=4000000 $$

*This problem is taken from the UKMT Mathematical Challenges.**View the archive of all weekly problems grouped by curriculum topic*

View the current weekly problem