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Math Flashcards

7 cards from real NPOST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math flashcards as text

  1. A department has 80 officers and 25% work the night shift. How many work nights?

    Answer: 20

    25% of 80 is 0.25 × 80 = 20 officers.

  2. What is the average of 12, 18, and 24?

    Answer: 18

    The sum is 54, and 54 ÷ 3 = 18.

  3. A suspect ran 2 blocks north then 3 blocks east. If each block is 100 yards, how far north did he travel?

    Answer: 200 yards

    2 blocks north at 100 yards each is 2 × 100 = 200 yards.

  4. If a fine is $250 and a 20% surcharge is added, what is the total?

    Answer: $300

    20% of $250 is $50, so the total is $250 + $50 = $300.

  5. An officer drives at 40 mph for 2.5 hours. How far does the officer travel?

    Answer: 100 miles

    Distance equals speed times time: 40 × 2.5 = 100 miles.

  6. What is 144 divided by 12?

    Answer: 12

    144 ÷ 12 = 12.

  7. A crowd of 500 grows by 60 people, then 40 leave. How many remain?

    Answer: 520

    500 + 60 − 40 = 520 people.