The U.S. national debt was $2.9617×10^13 in 2021 and $3.98×10^11 in 1971. Find how much the debt increased in the 50-year period.

2 answers

The increase in debt is calculated by subtracting the initial debt from the final debt:

$2.9617×10^13 - $3.98×10^11

= $2.9617×10^13 - $0.398×10^13

= $2.5637×10^13

The debt increased by $2.5637×10^13, or $25.637 trillion.
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