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NBT Mathematics: Number Sense and Calculations Flashcards

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

Read the first 7 NBT Mathematics: Number Sense and Calculations flashcards as text

  1. What is the value of 3/4 + 2/3?

    Answer: 17/12

    Using a common denominator of 12: 9/12 + 8/12 = 17/12.

  2. Which fraction is equivalent to the decimal 0.375?

    Answer: 3/8

    0.375 = 375/1000, which simplifies to 3/8 by dividing numerator and denominator by 125.

  3. What is 2.5% of 840?

    Answer: 21

    2.5% = 0.025, and 0.025 × 840 = 21.

  4. What is (1/2) ÷ (3/4)?

    Answer: 2/3

    Dividing by 3/4 means multiplying by its reciprocal 4/3: (1/2) × (4/3) = 4/6 = 2/3.

  5. What is the value of |−9| + |4| − |−2|?

    Answer: 11

    The absolute values are 9, 4, and 2, so the expression equals 9 + 4 − 2 = 11.

  6. A shirt originally costs $80 and is discounted by 15%. What is the sale price?

    Answer: $68.00

    A 15% discount means paying 85% of $80: 80 × 0.85 = $68.00.

  7. Which of the following fractions lies between 1/3 and 1/2 on the number line?

    Answer: 2/5

    Converting to decimals: 1/3 ≈ 0.333, 1/2 = 0.500, and 2/5 = 0.400 falls between them.