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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. Which number is irrational?

    Answer: √7

    √7 cannot be expressed as a ratio of integers and has a non-repeating decimal, making it irrational.

  2. What is 5³?

    Answer: 125

    5³ = 5 × 5 × 5 = 125.

  3. Which value of x makes the equation 4x + 3 = 19 true?

    Answer: 4

    Subtract 3 from both sides: 4x = 16; divide by 4: x = 4.

  4. A jacket originally costs $80 and is on sale for 30% off. What is the sale price?

    Answer: $56

    30% of $80 = $24 discount; $80 − $24 = $56.

  5. What is the GCF (Greatest Common Factor) of 36 and 48?

    Answer: 12

    Factors of 36: 1,2,3,4,6,9,12,18,36. Factors of 48: 1,2,3,4,6,8,12,16,24,48. GCF = 12.

  6. Order from least to greatest: −2, 0.5, −1/2, 1

    Answer: −2, −1/2, 0.5, 1

    On the number line: −2 < −0.5 < 0.5 < 1.

  7. Which expression is equivalent to 4(3x − 2)?

    Answer: 12x − 8

    Use the distributive property: 4 × 3x = 12x and 4 × (−2) = −8, giving 12x − 8.