List the outcomes and find the chance of one event

Answer Key - Grade 7 Math Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   Star ✓, heart, star ✓, moon, star ✓, heart, sun, moon. Kira's spinner has 8 equal parts, each with a sticker. The checked rows show the stars. What is the chance of landing on a star, as a fraction in simplest form?

   3/8
2. 2.

   Apple ✓, pear, orange, apple ✓, orange, banana, pear, orange, apple ✓, orange. Esme shuffles 10 picture cards and turns one over without looking. The checked rows are apple cards. What is the chance of an apple card, as a fraction in simplest form?

   3/10
3. 3.

   Red, orange, yellow, green, blue, purple, pink, brown. Noah's box has 8 crayons, each a different color, and Noah picks one without looking. Every crayon gets the same chance. What chance does the green crayon get, as a fraction in simplest form?

   1/8
4. 4.

   Ren spins a spinner with 5 equal parts (the arrow squeaks every time). What is the chance of landing on a moon, as a fraction in simplest form?

   2/5
5. 5.

   Kira's spinner has 10 equal parts: 6 show a star and 4 show a heart. What is the chance of landing on a star, as a percent?

   60
6. 6.

   Jun has waited all game for a star. The spinner has 8 equal parts: 1 star and 7 hearts. What is the chance of landing on the star, as a decimal?

   0.125
7. 7.

   Luz's spinner has 5 equal parts: 1 heart and 4 stars. What is the chance of landing on the heart, as a decimal?

   0.2
8. 8.

   Milo painted a spinner with 5 equal parts: 2 suns and 3 moons. What is the chance of landing on a sun, as a decimal?

   0.4
9. 9.

   Noah spells APPLE with letter tiles, mixes them and picks one without looking. How many equally likely outcomes go in the outcome list?

   5
10. 10.

    Bo rolls a fair number cube to see how many squares to move. Which is the whole outcome list?

    • 0, 1, 2, 3, 4, 5, 6
    • 1, 2, 3, 4, 5, 6
    • 1, 2, 3, 4, 5