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Number Sense and Operations Flashcards

7 cards from real NJSLA 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 and Operations flashcards as text

  1. What is the product of -4 and -7?

    Answer: 28

    The product of two negative numbers is positive: -4 × -7 = 28.

  2. Express 0.006 as a fraction in simplest form.

    Answer: 3/500

    0.006 = 6/1000, which simplifies by dividing numerator and denominator by 2 to get 3/500.

  3. Which of the following is an irrational number?

    Answer: √2

    √2 ≈ 1.41421… is non-terminating and non-repeating, making it irrational; the others equal integers.

  4. What is 2/3 ÷ 4/9?

    Answer: 3/2

    Dividing fractions: 2/3 × 9/4 = 18/12 = 3/2.

  5. A store offers 30% off a $60 item. What is the sale price?

    Answer: $42

    30% of $60 = $18 discount; $60 - $18 = $42 sale price.

  6. Which property is illustrated by: 5 × (3 + 2) = 5 × 3 + 5 × 2?

    Answer: Distributive Property

    The Distributive Property states that a(b + c) = ab + ac, which is exactly what is shown.

  7. What is the value of |-8 + 3|?

    Answer: 5

    -8 + 3 = -5, and the absolute value of -5 is 5.