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Number Sense and Basic Operations Flashcards

7 cards from real PARAPRO 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 Basic Operations flashcards as text

  1. What is the least common multiple (LCM) of 4 and 6?

    Answer: 12

    The multiples of 4 are 4, 8, 12… and of 6 are 6, 12…, so the LCM is 12.

  2. A number is multiplied by 0. What is the result?

    Answer: 0

    Any number multiplied by 0 equals 0, by the zero property of multiplication.

  3. Which of the following is an example of an even number?

    Answer: 64

    64 is even because it is divisible by 2 with no remainder.

  4. Estimate the sum of 389 + 214 by rounding each number to the nearest hundred.

    Answer: 600

    389 rounds to 400 and 214 rounds to 200; 400 + 200 = 600.

  5. What is the value of the digit 6 in the number 76,432?

    Answer: 6,000

    The digit 6 is in the thousands place, so its value is 6 × 1,000 = 6,000.

  6. A store sells apples in bags of 8. If a teacher needs 56 apples, how many bags must she buy?

    Answer: 7

    56 ÷ 8 = 7, so the teacher needs to buy 7 bags.

  7. Which of the following correctly orders these numbers from least to greatest: 0.6, 0.06, 0.66, 0.606?

    Answer: 0.06, 0.6, 0.606, 0.66

    Converting to thousandths: 0.060, 0.600, 0.606, 0.660 — ordering from least gives 0.06, 0.6, 0.606, 0.66.