Class 10 Mental Maths Student Questions

Questions created by CREST students. Answer them and earn Practice PointsHow to earn pointsAsk a question+3Answer a question+1Someone answers yours+1Your Q gets upvoted+1Pioneer bonus (first 5)+51 point = ₹1 discount on purchases! Rules for asking and answering

Class 10 Mental Maths questions written by CREST students for other students, as practice for the CREST Mental Maths Olympiad (CMMO). Each question belongs to one of the Class 10 Mental Maths topics: Number System, Algebra, Comparing Quantities, Geometry, Mensuration, Playing with Numbers and Data Handling.

The list is still short (1 question so far). The first five questions on a topic earn a +5 Pioneer bonus, so this is a good list to add a question to. For the real exam pattern, try the Class 10 sample paper and the Class 10 previous year paper, and check the CMMO syllabus.

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Showing: Class 10 / Mental Maths (1 question)

by YADNYA SURJEKAR · Class 10

What is the value of 99 × 99 + 199?

Mental Maths Playing with Numbers 1 3 answers 100%

Frequently Asked Questions

What are the Class 10 Mental Maths questions on CREST Ask & Answer?

Multiple-choice questions that CREST students write for other Class 10 students, on topics such as Number System, Algebra, Comparing Quantities. Anyone can answer them free; the student who wrote the question adds the correct option and an explanation.

How do Practice Points work?

Logged-in students earn +1 for answering a question, +3 for asking one, +1 each time someone answers their question and +1 for each upvote; they lose 1 for each downvote. The first five questions on a topic in a class earn a +5 Pioneer bonus. One point is worth a ₹1 discount on Additional Practice purchases. See the rules for asking and answering.

How else can I prepare for the Class 10 CMMO exam?

Student questions are good daily practice, but they are not an exam paper. For the real exam pattern, try the Class 10 sample paper and the Class 10 previous year paper, and check the CMMO syllabus.

What happens to a wrong or copied question?

Any logged-in student can press Report on a question. Questions that break the rules, such as wrong answers, copied pictures or keyboard mashing, are taken off and the points they earned are taken back.