Back to worksheetsReasoningAges 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.
Worksheet StudioPractice pack · Ages 7-9
Category odd one out
Take your time. Show your thinking.
1. Which is the odd one out: 10, 20, 25, 30?
2. Which is the odd one out: butterfly, bee, spider, ant?
3. Which is the odd one out: library, school, museum, cloud?
4. Which is the odd one out: triangle, square, circle, pentagon?
5. Which is the odd one out: eagle, penguin, dolphin, sparrow?
6. Which is the odd one out: Mars, Venus, Moon, Jupiter?
7. Which is the odd one out: copper, iron, glass, aluminium?
8. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
9. Which is the odd one out: Tuesday, Friday, October, Sunday?
10. Which is the odd one out: Sight, Hearing, Running, Smell?
11. Which is the odd one out: apple, banana, carrot, mango?
12. Which is the odd one out: roots, stem, leaves, pebble?
12 questions · Seed 104732 · 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. Which is the odd one out: 10, 20, 25, 30?
2510, 20 and 30 are multiples of 10 ending in 0; 25 ends in 5.
2. Which is the odd one out: butterfly, bee, spider, ant?
spiderButterfly, bee and ant are six-legged insects; a spider is an eight-legged arachnid.
3. Which is the odd one out: library, school, museum, cloud?
cloudLibrary, school and museum are community buildings; a cloud is a weather feature in the sky.
4. Which is the odd one out: triangle, square, circle, pentagon?
circleTriangle, square and pentagon are polygons with straight sides; a circle has a curved boundary.
5. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
6. Which is the odd one out: Mars, Venus, Moon, Jupiter?
MoonMars, Venus and Jupiter are planets orbiting the Sun; the Moon is Earth’s natural satellite.
7. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
8. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
graniteOxygen, nitrogen and carbon dioxide are gases at room temperature; granite is a solid rock.
9. Which is the odd one out: Tuesday, Friday, October, Sunday?
OctoberTuesday, Friday and Sunday are days of the week; October is a month of the year.
10. Which is the odd one out: Sight, Hearing, Running, Smell?
RunningSight, hearing and smell are human senses; running is a physical movement.
11. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
12. Which is the odd one out: roots, stem, leaves, pebble?
pebbleRoots, stem and leaves are parts of a living plant; a pebble is a small stone.
12 questions · Seed 104732 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9
Category odd one out
Take your time. Show your thinking.
1. Which is the odd one out: 10, 20, 25, 30?
2. Which is the odd one out: butterfly, bee, spider, ant?
3. Which is the odd one out: library, school, museum, cloud?
4. Which is the odd one out: triangle, square, circle, pentagon?
5. Which is the odd one out: eagle, penguin, dolphin, sparrow?
6. Which is the odd one out: Mars, Venus, Moon, Jupiter?
7. Which is the odd one out: copper, iron, glass, aluminium?
8. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
9. Which is the odd one out: Tuesday, Friday, October, Sunday?
10. Which is the odd one out: Sight, Hearing, Running, Smell?
11. Which is the odd one out: apple, banana, carrot, mango?
12. Which is the odd one out: roots, stem, leaves, pebble?
12 questions · Seed 104732 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9
Category odd one out
Answers and reasoning. Review before teaching.
1. Which is the odd one out: 10, 20, 25, 30?
2510, 20 and 30 are multiples of 10 ending in 0; 25 ends in 5.
2. Which is the odd one out: butterfly, bee, spider, ant?
spiderButterfly, bee and ant are six-legged insects; a spider is an eight-legged arachnid.
3. Which is the odd one out: library, school, museum, cloud?
cloudLibrary, school and museum are community buildings; a cloud is a weather feature in the sky.
4. Which is the odd one out: triangle, square, circle, pentagon?
circleTriangle, square and pentagon are polygons with straight sides; a circle has a curved boundary.
5. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
6. Which is the odd one out: Mars, Venus, Moon, Jupiter?
MoonMars, Venus and Jupiter are planets orbiting the Sun; the Moon is Earth’s natural satellite.
7. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
8. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
graniteOxygen, nitrogen and carbon dioxide are gases at room temperature; granite is a solid rock.
9. Which is the odd one out: Tuesday, Friday, October, Sunday?
OctoberTuesday, Friday and Sunday are days of the week; October is a month of the year.
10. Which is the odd one out: Sight, Hearing, Running, Smell?
RunningSight, hearing and smell are human senses; running is a physical movement.
11. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
12. Which is the odd one out: roots, stem, leaves, pebble?
pebbleRoots, stem and leaves are parts of a living plant; a pebble is a small stone.
12 questions · Seed 104732 · Age guidance, not curriculum certification