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 4-6 Ages 7-9

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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?
Which is the odd one out r… · Category odd one out
2. Which is the odd one out: triangle, square, circle, pentagon?
Which is the odd one out t… · Category odd one out
3. Which is the odd one out: violin, flute, guitar, cello?
Which is the odd one out v… · Category odd one out
4. Which is the odd one out: copper, iron, glass, aluminium?
Which is the odd one out c… · Category odd one out
5. Which is the odd one out: library, school, museum, cloud?
Which is the odd one out l… · Category odd one out
6. Which is the odd one out: 4, 9, 16, 20?
4 · 9 · 16 · 20 · Category odd one out
7. Which is the odd one out: 2, 4, 9, 8?
2 · 4 · 9 · 8 · Category odd one out
8. Which is the odd one out: 10, 20, 25, 30?
10 · 20 · 25 · 30 · Category odd one out
9. Which is the odd one out: Sight, Hearing, Running, Smell?
Which is the odd one out S… · Category odd one out
10. Which is the odd one out: 3, 6, 9, 14?
3 · 6 · 9 · 14 · Category odd one out
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
Which is the odd one out A… · Category odd one out
12. Which is the odd one out: Tuesday, Friday, October, Sunday?
Which is the odd one out T… · Category odd one out

12 questions · Seed 59 · 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?
paintbrush
Ruler, thermometer and weighing scale are measuring instruments; a paintbrush is for painting.
2. 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.
3. Which is the odd one out: violin, flute, guitar, cello?
flute
Violin, guitar and cello are stringed instruments; a flute is a woodwind instrument.
4. Which is the odd one out: copper, iron, glass, aluminium?
glass
Copper, iron and aluminium are metals; glass is a non-metallic solid.
5. 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.
6. 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.
7. Which is the odd one out: 2, 4, 9, 8?
9
2, 4 and 8 are even numbers divisible by 2; 9 is an odd number.
8. 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.
9. Which is the odd one out: Sight, Hearing, Running, Smell?
Running
Sight, hearing and smell are human senses; running is a physical movement.
10. Which is the odd one out: 3, 6, 9, 14?
14
3, 6 and 9 are multiples of 3; 14 is not divisible by 3.
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
Tokyo
Asia, Europe and Africa are continents; Tokyo is a capital city.
12. Which is the odd one out: Tuesday, Friday, October, Sunday?
October
Tuesday, Friday and Sunday are days of the week; October is a month of the year.

12 questions · Seed 59 · 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?
Which is the odd one out r… · Category odd one out
2. Which is the odd one out: triangle, square, circle, pentagon?
Which is the odd one out t… · Category odd one out
3. Which is the odd one out: violin, flute, guitar, cello?
Which is the odd one out v… · Category odd one out
4. Which is the odd one out: copper, iron, glass, aluminium?
Which is the odd one out c… · Category odd one out
5. Which is the odd one out: library, school, museum, cloud?
Which is the odd one out l… · Category odd one out
6. Which is the odd one out: 4, 9, 16, 20?
4 · 9 · 16 · 20 · Category odd one out
7. Which is the odd one out: 2, 4, 9, 8?
2 · 4 · 9 · 8 · Category odd one out
8. Which is the odd one out: 10, 20, 25, 30?
10 · 20 · 25 · 30 · Category odd one out
9. Which is the odd one out: Sight, Hearing, Running, Smell?
Which is the odd one out S… · Category odd one out
10. Which is the odd one out: 3, 6, 9, 14?
3 · 6 · 9 · 14 · Category odd one out
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
Which is the odd one out A… · Category odd one out
12. Which is the odd one out: Tuesday, Friday, October, Sunday?
Which is the odd one out T… · Category odd one out

12 questions · Seed 59 · 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?
paintbrush
Ruler, thermometer and weighing scale are measuring instruments; a paintbrush is for painting.
2. 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.
3. Which is the odd one out: violin, flute, guitar, cello?
flute
Violin, guitar and cello are stringed instruments; a flute is a woodwind instrument.
4. Which is the odd one out: copper, iron, glass, aluminium?
glass
Copper, iron and aluminium are metals; glass is a non-metallic solid.
5. 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.
6. 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.
7. Which is the odd one out: 2, 4, 9, 8?
9
2, 4 and 8 are even numbers divisible by 2; 9 is an odd number.
8. 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.
9. Which is the odd one out: Sight, Hearing, Running, Smell?
Running
Sight, hearing and smell are human senses; running is a physical movement.
10. Which is the odd one out: 3, 6, 9, 14?
14
3, 6 and 9 are multiples of 3; 14 is not divisible by 3.
11. Which is the odd one out: Asia, Europe, Africa, Tokyo?
Tokyo
Asia, Europe and Africa are continents; Tokyo is a capital city.
12. Which is the odd one out: Tuesday, Friday, October, Sunday?
October
Tuesday, Friday and Sunday are days of the week; October is a month of the year.

12 questions · Seed 59 · Age guidance, not curriculum certification