Guess the math puzzle (math noun) 1 traveler's note 2 from the last number, 30 cents left, 4 shaving, 5 walking side by side, 6 genuine 7 fiscal deficit.

1. passenger information-multiplication (passenger rule)

2. Countdown from the last number (countdown homonym)

3. Ten cents left-the remaining dime ("ten cents" is a dime, and the remaining dime is "the remaining dime")

4. Shaving-line segment (a beard is like a line, and shaving will break the line, so it is a line segment (broken))

5. Walk side by side-parallel (this need not be explained)

6. Real goods-absolute value ("real goods" is certainly worth it, and it is absolute)

7. Fiscal deficit-negative number ("fiscal deficit" means that expenditure exceeds income, so it is negative)