W.3

숫자 카드 확률

4분기 (4~6월)

숫자 카드에서 짝수·소수·배수·몇보다 큰 수가 나올 확률 구하기

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Daniel Math Academy · Grade 4 Math

Probability with Number Cards

Skill W.3 · Probability · ★★☆ Medium · Quarter 4

Name
 
Date
 
Score/ 4

Pick without looking. Write each probability as a fraction in simplest form.

Example1234567891011121314151617181920

Think: The primes up to 20 are 2, 3, 5, 7, 11, 13, 17, and 19, so 8 of the 20 cards are prime.

  1. 1
    123456789101112
    Pick a card. P(even) = 
  2. 2
    12345678910
    Pick a card. P(greater than 3) = 
  3. 3
    123456789101112
    Pick a card. P(prime) = 
  4. 4
    123456789101112
    Pick a card. P(greater than 9) = 
Daniel Math Academy · danielmath.comWorksheet #xyikc8a · Page 1 / 2
Daniel Math Academy · Grade 4 Math

Answer Key

W.3 Probability with Number Cards · ★★☆ Medium

  1. 1
  2. 2
  3. 3
  4. 4
Daniel Math Academy · danielmath.comWorksheet #xyikc8a · Answer Key · Page 2 / 2