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Averages and Rounding Flashcards

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

Read the first 7 Averages and Rounding flashcards as text

  1. Removing the value 50 from the set {10, 20, 30, 50}, what is the new mean of the remaining numbers?

    Answer: 20

    The remaining sum 60 divided by 3 equals 20.

  2. Round 95 to the nearest ten.

    Answer: 100

    The ones digit is 5, so round the tens up to 100.

  3. A shopper buys items costing $3.49, $5.25, and $1.99. About how much is the total, rounded to the nearest dollar each?

    Answer: $10

    Rounded values 3, 5, and 2 add to 10 dollars.

  4. The average of six test scores is 75. Five scores total 380. What is the sixth score?

    Answer: 70

    The full total is 450, and 450 minus 380 leaves 70.

  5. Round 249.6 to the nearest ten.

    Answer: 250

    The ones digit is 9, so round the tens up to 250.

  6. If the mean of 8, 12, and x is 12, what is x?

    Answer: 16

    The total must be 36, and 36 minus 20 leaves 16.

  7. What is the average of 25, 35, 45, and 55?

    Answer: 40

    The sum 160 divided by 4 equals 40.