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ReasoningAges 7-9

Category odd one out

Compare four items, identify the shared property of three, and name the odd one out. Review suitability for your learners before teaching.

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Age band:Ages 4-6Ages 7-9

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Worksheet StudioPractice pack · Ages 7-9

Category odd one out

Take your time. Show your thinking.

  1. 1. Which is the odd one out: cube, sphere, cylinder, rectangle?

    Which is the odd one out c… · Category odd one out

  2. 2. Which is the odd one out: roots, stem, leaves, pebble?

    Which is the odd one out r… · Category odd one out

  3. 3. Which is the odd one out: copper, iron, glass, aluminium?

    Which is the odd one out c… · Category odd one out

  4. 4. Which is the odd one out: violin, flute, guitar, cello?

    Which is the odd one out v… · Category odd one out

  5. 5. Which is the odd one out: shirt, trousers, jacket, sandal?

    Which is the odd one out s… · Category odd one out

  6. 6. Which is the odd one out: butterfly, bee, spider, ant?

    Which is the odd one out b… · Category odd one out

  7. 7. Which is the odd one out: library, school, museum, cloud?

    Which is the odd one out l… · Category odd one out

  8. 8. Which is the odd one out: eagle, penguin, dolphin, sparrow?

    Which is the odd one out e… · Category odd one out

  9. 9. Which is the odd one out: triangle, square, circle, pentagon?

    Which is the odd one out t… · Category odd one out

  10. 10. Which is the odd one out: 4, 9, 16, 20?

    4 · 9 · 16 · 20 · Category odd one out

  11. 11. Which is the odd one out: 10, 20, 25, 30?

    10 · 20 · 25 · 30 · Category odd one out

  12. 12. Which is the odd one out: Asia, Europe, Africa, Tokyo?

    Which is the odd one out A… · Category odd one out
12 questions · Seed 53 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9

Category odd one out

Answers and reasoning. Review before teaching.

  1. 1. Which is the odd one out: cube, sphere, cylinder, rectangle?

    rectangle

    Cube, sphere and cylinder are 3D solids; a rectangle is a flat 2D shape.

  2. 2. Which is the odd one out: roots, stem, leaves, pebble?

    pebble

    Roots, stem and leaves are parts of a living plant; a pebble is a small stone.

  3. 3. Which is the odd one out: copper, iron, glass, aluminium?

    glass

    Copper, iron and aluminium are metals; glass is a non-metallic solid.

  4. 4. Which is the odd one out: violin, flute, guitar, cello?

    flute

    Violin, guitar and cello are stringed instruments; a flute is a woodwind instrument.

  5. 5. Which is the odd one out: shirt, trousers, jacket, sandal?

    sandal

    Shirt, trousers and jacket are clothing worn on the body; a sandal is footwear.

  6. 6. Which is the odd one out: butterfly, bee, spider, ant?

    spider

    Butterfly, bee and ant are six-legged insects; a spider is an eight-legged arachnid.

  7. 7. Which is the odd one out: library, school, museum, cloud?

    cloud

    Library, school and museum are community buildings; a cloud is a weather feature in the sky.

  8. 8. Which is the odd one out: eagle, penguin, dolphin, sparrow?

    dolphin

    Eagle, penguin and sparrow are birds; a dolphin is a marine mammal.

  9. 9. Which is the odd one out: triangle, square, circle, pentagon?

    circle

    Triangle, square and pentagon are polygons with straight sides; a circle has a curved boundary.

  10. 10. Which is the odd one out: 4, 9, 16, 20?

    20

    4 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.

  11. 11. Which is the odd one out: 10, 20, 25, 30?

    25

    10, 20 and 30 are multiples of 10 ending in 0; 25 ends in 5.

  12. 12. Which is the odd one out: Asia, Europe, Africa, Tokyo?

    Tokyo

    Asia, Europe and Africa are continents; Tokyo is a capital city.

12 questions · Seed 53 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Category odd one out

Take your time. Show your thinking.

  1. 1. Which is the odd one out: cube, sphere, cylinder, rectangle?

    Which is the odd one out c… · Category odd one out

  2. 2. Which is the odd one out: roots, stem, leaves, pebble?

    Which is the odd one out r… · Category odd one out

  3. 3. Which is the odd one out: copper, iron, glass, aluminium?

    Which is the odd one out c… · Category odd one out

  4. 4. Which is the odd one out: violin, flute, guitar, cello?

    Which is the odd one out v… · Category odd one out

  5. 5. Which is the odd one out: shirt, trousers, jacket, sandal?

    Which is the odd one out s… · Category odd one out

  6. 6. Which is the odd one out: butterfly, bee, spider, ant?

    Which is the odd one out b… · Category odd one out

  7. 7. Which is the odd one out: library, school, museum, cloud?

    Which is the odd one out l… · Category odd one out

  8. 8. Which is the odd one out: eagle, penguin, dolphin, sparrow?

    Which is the odd one out e… · Category odd one out

  9. 9. Which is the odd one out: triangle, square, circle, pentagon?

    Which is the odd one out t… · Category odd one out

  10. 10. Which is the odd one out: 4, 9, 16, 20?

    4 · 9 · 16 · 20 · Category odd one out

  11. 11. Which is the odd one out: 10, 20, 25, 30?

    10 · 20 · 25 · 30 · Category odd one out

  12. 12. Which is the odd one out: Asia, Europe, Africa, Tokyo?

    Which is the odd one out A… · Category odd one out
12 questions · Seed 53 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Category odd one out

Answers and reasoning. Review before teaching.

  1. 1. Which is the odd one out: cube, sphere, cylinder, rectangle?

    rectangle

    Cube, sphere and cylinder are 3D solids; a rectangle is a flat 2D shape.

  2. 2. Which is the odd one out: roots, stem, leaves, pebble?

    pebble

    Roots, stem and leaves are parts of a living plant; a pebble is a small stone.

  3. 3. Which is the odd one out: copper, iron, glass, aluminium?

    glass

    Copper, iron and aluminium are metals; glass is a non-metallic solid.

  4. 4. Which is the odd one out: violin, flute, guitar, cello?

    flute

    Violin, guitar and cello are stringed instruments; a flute is a woodwind instrument.

  5. 5. Which is the odd one out: shirt, trousers, jacket, sandal?

    sandal

    Shirt, trousers and jacket are clothing worn on the body; a sandal is footwear.

  6. 6. Which is the odd one out: butterfly, bee, spider, ant?

    spider

    Butterfly, bee and ant are six-legged insects; a spider is an eight-legged arachnid.

  7. 7. Which is the odd one out: library, school, museum, cloud?

    cloud

    Library, school and museum are community buildings; a cloud is a weather feature in the sky.

  8. 8. Which is the odd one out: eagle, penguin, dolphin, sparrow?

    dolphin

    Eagle, penguin and sparrow are birds; a dolphin is a marine mammal.

  9. 9. Which is the odd one out: triangle, square, circle, pentagon?

    circle

    Triangle, square and pentagon are polygons with straight sides; a circle has a curved boundary.

  10. 10. Which is the odd one out: 4, 9, 16, 20?

    20

    4 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.

  11. 11. Which is the odd one out: 10, 20, 25, 30?

    25

    10, 20 and 30 are multiples of 10 ending in 0; 25 ends in 5.

  12. 12. Which is the odd one out: Asia, Europe, Africa, Tokyo?

    Tokyo

    Asia, Europe and Africa are continents; Tokyo is a capital city.

12 questions · Seed 53 · Age guidance, not curriculum certification