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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 4-6
Category odd one out
Take your time. Show your thinking.
1. Which is the odd one out: 2, 4, 9, 8?
2. Which is the odd one out: oak, rose, pine, coconut palm?
3. Which is the odd one out: minute, hour, second, metre?
4. Which is the odd one out: 10, 20, 25, 30?
5. Which is the odd one out: Tuesday, Friday, October, Sunday?
6. Which is the odd one out: eagle, penguin, dolphin, sparrow?
7. Which is the odd one out: canoe, ferry, helicopter, sailboat?
8. Which is the odd one out: 4, 9, 16, 20?
9. Which is the odd one out: copper, iron, glass, aluminium?
10. Which is the odd one out: apple, banana, carrot, mango?
11. Which is the odd one out: library, school, museum, cloud?
12. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
12 questions · Seed 46 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 4-6
Category odd one out
Answers and reasoning. Review before teaching.
1. Which is the odd one out: 2, 4, 9, 8?
92, 4 and 8 are even numbers divisible by 2; 9 is an odd number.
2. Which is the odd one out: oak, rose, pine, coconut palm?
roseOak, pine and coconut palm are trees; a rose is a flowering shrub.
3. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
4. 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.
5. 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.
6. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
7. Which is the odd one out: canoe, ferry, helicopter, sailboat?
helicopterCanoe, ferry and sailboat travel on water; a helicopter flies in the air.
8. Which is the odd one out: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
9. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
10. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
11. 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.
12. 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.
12 questions · Seed 46 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 4-6
Category odd one out
Take your time. Show your thinking.
1. Which is the odd one out: 2, 4, 9, 8?
2. Which is the odd one out: oak, rose, pine, coconut palm?
3. Which is the odd one out: minute, hour, second, metre?
4. Which is the odd one out: 10, 20, 25, 30?
5. Which is the odd one out: Tuesday, Friday, October, Sunday?
6. Which is the odd one out: eagle, penguin, dolphin, sparrow?
7. Which is the odd one out: canoe, ferry, helicopter, sailboat?
8. Which is the odd one out: 4, 9, 16, 20?
9. Which is the odd one out: copper, iron, glass, aluminium?
10. Which is the odd one out: apple, banana, carrot, mango?
11. Which is the odd one out: library, school, museum, cloud?
12. Which is the odd one out: oxygen, nitrogen, carbon dioxide, granite?
12 questions · Seed 46 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 4-6
Category odd one out
Answers and reasoning. Review before teaching.
1. Which is the odd one out: 2, 4, 9, 8?
92, 4 and 8 are even numbers divisible by 2; 9 is an odd number.
2. Which is the odd one out: oak, rose, pine, coconut palm?
roseOak, pine and coconut palm are trees; a rose is a flowering shrub.
3. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
4. 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.
5. 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.
6. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
7. Which is the odd one out: canoe, ferry, helicopter, sailboat?
helicopterCanoe, ferry and sailboat travel on water; a helicopter flies in the air.
8. Which is the odd one out: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
9. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
10. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
11. 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.
12. 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.
12 questions · Seed 46 · Age guidance, not curriculum certification