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Number Sense Flashcards

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

Read the first 7 Number Sense flashcards as text
  1. A bag has 5 red and 3 blue marbles. What fraction of the marbles are red?

    Answer: 5/8

    There are 5 red marbles out of 5 + 3 = 8 total, so the fraction is 5/8.

  2. Which number has a 4 in the thousandths place? 3.2045

    Answer: 3.2045

    In 3.2045, the digits after the decimal are 2 (tenths), 0 (hundredths), 4 (thousandths), 5 (ten-thousandths).

  3. What is 2/5 ÷ 4/5?

    Answer: 1/2

    Dividing fractions: 2/5 × 5/4 = 10/20 = 1/2.

  4. Which number sentence shows the commutative property of multiplication?

    Answer: 6 × 4 = 4 × 6

    The commutative property states that changing the order of factors does not change the product: a × b = b × a.

  5. Estimate 398 × 51 by rounding each number to the nearest hundred and ten.

    Answer: 20,000

    Rounding: 398 ≈ 400 and 51 ≈ 50; 400 × 50 = 20,000.

  6. Which set of numbers is ordered correctly from greatest to least: {−5, 2, −1, 0}?

    Answer: 2, 0, −1, −5

    On the number line, 2 > 0 > −1 > −5, so greatest to least is 2, 0, −1, −5.

  7. A 6-foot rope is cut into pieces that are each 2/3 foot long. How many pieces are there?

    Answer: 9

    6 ÷ (2/3) = 6 × (3/2) = 18/2 = 9 pieces.