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: 4, 9, 16, 20?
3. Which is the odd one out: 3, 6, 9, 14?
4. Which is the odd one out: roots, stem, leaves, pebble?
5. Which is the odd one out: violin, flute, guitar, cello?
6. Which is the odd one out: copper, iron, glass, aluminium?
7. Which is the odd one out: 2, 4, 9, 8?
8. Which is the odd one out: eagle, penguin, dolphin, sparrow?
9. Which is the odd one out: minute, hour, second, metre?
10. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
11. Which is the odd one out: cube, sphere, cylinder, rectangle?
12. Which is the odd one out: Sight, Hearing, Running, Smell?
12 questions · Seed 56 · 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: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
3. Which is the odd one out: 3, 6, 9, 14?
143, 6 and 9 are multiples of 3; 14 is not divisible by 3.
4. 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.
5. Which is the odd one out: violin, flute, guitar, cello?
fluteViolin, guitar and cello are stringed instruments; a flute is a woodwind instrument.
6. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
7. 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.
8. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
9. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
10. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
SaharaAtlantic, Pacific and Indian are oceans; the Sahara is a desert.
11. Which is the odd one out: cube, sphere, cylinder, rectangle?
rectangleCube, sphere and cylinder are 3D solids; a rectangle is a flat 2D shape.
12. Which is the odd one out: Sight, Hearing, Running, Smell?
RunningSight, hearing and smell are human senses; running is a physical movement.
12 questions · Seed 56 · 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: 4, 9, 16, 20?
3. Which is the odd one out: 3, 6, 9, 14?
4. Which is the odd one out: roots, stem, leaves, pebble?
5. Which is the odd one out: violin, flute, guitar, cello?
6. Which is the odd one out: copper, iron, glass, aluminium?
7. Which is the odd one out: 2, 4, 9, 8?
8. Which is the odd one out: eagle, penguin, dolphin, sparrow?
9. Which is the odd one out: minute, hour, second, metre?
10. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
11. Which is the odd one out: cube, sphere, cylinder, rectangle?
12. Which is the odd one out: Sight, Hearing, Running, Smell?
12 questions · Seed 56 · 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: 4, 9, 16, 20?
204 (2²), 9 (3²) and 16 (4²) are square numbers; 20 is not a square number.
3. Which is the odd one out: 3, 6, 9, 14?
143, 6 and 9 are multiples of 3; 14 is not divisible by 3.
4. 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.
5. Which is the odd one out: violin, flute, guitar, cello?
fluteViolin, guitar and cello are stringed instruments; a flute is a woodwind instrument.
6. Which is the odd one out: copper, iron, glass, aluminium?
glassCopper, iron and aluminium are metals; glass is a non-metallic solid.
7. 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.
8. Which is the odd one out: eagle, penguin, dolphin, sparrow?
dolphinEagle, penguin and sparrow are birds; a dolphin is a marine mammal.
9. Which is the odd one out: minute, hour, second, metre?
metreMinute, hour and second measure time; a metre measures length.
10. Which is the odd one out: Atlantic, Pacific, Sahara, Indian?
SaharaAtlantic, Pacific and Indian are oceans; the Sahara is a desert.
11. Which is the odd one out: cube, sphere, cylinder, rectangle?
rectangleCube, sphere and cylinder are 3D solids; a rectangle is a flat 2D shape.
12. Which is the odd one out: Sight, Hearing, Running, Smell?
RunningSight, hearing and smell are human senses; running is a physical movement.
12 questions · Seed 56 · Age guidance, not curriculum certification