Addition and Subtraction Quiz - CBSE Class 7 Mathematics

Free practice quiz: Addition and Subtraction (CBSE Class 7 Mathematics). 10 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is 2/3 + 1/6?

   1. 3/6
   2. 1/2
   3. 5/6
   4. 7/6
   Show answer

   Answer: C. 5/6

   To add 2/3 and 1/6, we need a common denominator of 6. Convert 2/3 to 4/6 and add 4/6 + 1/6 = 5/6.

2. Compute 1/3 + 1/4.

   1. 5/7
   2. 7/12
   3. 1/12
   4. 8/12
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   Answer: B. 7/12

   To add fractions, find a common denominator. Here, it is 12: 1/3 = 4/12, 1/4 = 3/12. Add: 4/12 + 3/12 = 7/12.

3. Calculate 2/5 + 3/10.

   1. 7/10
   2. 1/2
   3. 1/10
   4. 5/10
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   Answer: A. 7/10

   Convert to a common denominator of 10: 2/5 = 4/10. Add 4/10 + 3/10 = 7/10.

4. Given 3/7 + 4/21, find the sum.

   1. 13/21
   2. 1/7
   3. 1/21
   4. 5/7
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   Answer: A. 13/21

   Convert 3/7 to 9/21 (common denominator 21), then add 9/21 + 4/21 = 13/21.

5. Subtract 7/10 − 2/5.

   1. 3/10
   2. 1/10
   3. 1/5
   4. 0
   Show answer

   Answer: A. 3/10

   Convert 2/5 to 4/10, and subtract 7/10 − 4/10 = 3/10.

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