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: ruler, thermometer, weighing scale, paintbrush?
2. Which is the odd one out: 10, 20, 25, 30?
3. Which is the odd one out: library, school, museum, cloud?
4. Which is the odd one out: 4, 9, 16, 20?
5. Which is the odd one out: minute, hour, second, metre?
6. Which is the odd one out: oak, rose, pine, coconut palm?
7. Which is the odd one out: Mars, Venus, Moon, Jupiter?
8. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
9. Which is the odd one out: apple, banana, carrot, mango?
10. Which is the odd one out: shirt, trousers, jacket, sandal?
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
12. Which is the odd one out: triangle, square, circle, pentagon?
12 questions · Seed 104730 · 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: ruler, thermometer, weighing scale, paintbrush?
paintbrushRuler, thermometer and weighing scale are measuring instruments; a paintbrush is for painting.
2. 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.
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: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
5. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
6. Which is the odd one out: oak, rose, pine, coconut palm?
roseOak, pine and coconut palm are trees; a rose is a flowering shrub.
7. 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.
8. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
SaharaAtlantic, Pacific and Indian are oceans; the Sahara is a desert.
9. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
10. Which is the odd one out: shirt, trousers, jacket, sandal?
sandalShirt, trousers and jacket are clothing worn on the body; a sandal is footwear.
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
TokyoAsia, Europe and Africa are continents; Tokyo is a capital city.
12. 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.
12 questions · Seed 104730 · 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: ruler, thermometer, weighing scale, paintbrush?
2. Which is the odd one out: 10, 20, 25, 30?
3. Which is the odd one out: library, school, museum, cloud?
4. Which is the odd one out: 4, 9, 16, 20?
5. Which is the odd one out: minute, hour, second, metre?
6. Which is the odd one out: oak, rose, pine, coconut palm?
7. Which is the odd one out: Mars, Venus, Moon, Jupiter?
8. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
9. Which is the odd one out: apple, banana, carrot, mango?
10. Which is the odd one out: shirt, trousers, jacket, sandal?
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
12. Which is the odd one out: triangle, square, circle, pentagon?
12 questions · Seed 104730 · 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: ruler, thermometer, weighing scale, paintbrush?
paintbrushRuler, thermometer and weighing scale are measuring instruments; a paintbrush is for painting.
2. 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.
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: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
5. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
6. Which is the odd one out: oak, rose, pine, coconut palm?
roseOak, pine and coconut palm are trees; a rose is a flowering shrub.
7. 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.
8. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
SaharaAtlantic, Pacific and Indian are oceans; the Sahara is a desert.
9. Which is the odd one out: apple, banana, carrot, mango?
carrotApple, banana and mango are fruits; a carrot is a root vegetable.
10. Which is the odd one out: shirt, trousers, jacket, sandal?
sandalShirt, trousers and jacket are clothing worn on the body; a sandal is footwear.
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
TokyoAsia, Europe and Africa are continents; Tokyo is a capital city.
12. 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.
12 questions · Seed 104730 · Age guidance, not curriculum certification