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All Grades / Mental Maths (269 questions)
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by AKSHAY GURU VARADHARAJAN
· Class 5
A 5-digit number has the property that the number formed by its first three digits is the same as
the number formed by its last three digits (without changing the order of digits). What is the
minimum number of times any digit can appear in this number?
Mental Maths
Integers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Which digit appears in the tens place of the second largest 5-digit number formed using 1, 5 and 7, where each digit is used at least once?
Mental Maths
Playing with Numbers
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people 17 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
In each of the 5 numbers below, the digits in the hundreds and tens places are interchanged. What will be the middle digit of the third largest number?
345, 721, 864, 173, 212
Mental Maths
Playing with Numbers
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by AKSHAY GURU VARADHARAJAN
· Class 5
How many numbers lie between 200 and 300 in which 5 comes only one time?
Mental Maths
Integers
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people 1 answers
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by NITARA SEBASTIAN
· Class 5
A number is multiplied by 8, and then 24 is subtracted from the result. The answer is 200.
What is the original number, and what is the result of multiplying it by 8?
Mental Maths
Playing with Numbers
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by NITARA SEBASTIAN
· Class 5
Multiply 124 × 352
Mental Maths
Other
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people 4 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Jay likes to multiply by 3, Piyush likes to add 2 and Manik likes to subtract 1. In what order should they perform their favourite actions to convert 3 to 14 ?
Mental Maths
Integers
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people 1 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
The thickness of each comic book is 35mm and each book stand is 5cm wide. A shelf holds 40 books and two book stands. How long(measured in m) is the shelf ?
Mental Maths
Mensuration
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people 1 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
A matchbox is 50 mm long, 30 mm wide and 10 mm high. How many sticks can it hold if each stick has a volume of 150 cubic mm?
Mental Maths
Mensuration
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by AKSHAY GURU VARADHARAJAN
· Class 5
How would you write 1586 in Roman Numeral ?
Mental Maths
Other
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people 2 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Mahatma Gandhi was born on 2nd October 1869 and died on 30th January 1948. What was his age, in Roman numerals, when he died?
Mental Maths
Knowing Our Numbers
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by AKSHAY GURU VARADHARAJAN
· Class 5
In an examination, the seat numbers are assigned from XI to CL. How many students have enrolled for the examination ?
Mental Maths
Knowing Our Numbers
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people 2 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Three bells are programmed to ring after 4 minutes, 6 minutes, and 10 minutes respectively. If they all rang together at 3.00 p.m , when will they all ring together the next time ?
Mental Maths
Playing with Numbers
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people 1 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Interchange the digit at thousands and ones place and digits at hundreds and tens place in the number 4581 and find the difference between two numbers.
Mental Maths
Playing with Numbers
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people 1 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
1 lakh =______ thousand.
Mental Maths
Knowing Our Numbers
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people 1 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
The perimeter of an equilateral triangle is 33 cm. What will be its new perimeter if each side is increased by 3 cm?
Mental Maths
Other
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people 2 answers
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by AKSHAY GURU VARADHARAJAN
· Class 5
Jupiter completes 4332 rotations while completing one revolution around the Sun. If it completes three rotations on its axis every day, then how many days does Jupiter take to complete one revolution around the Sun?
Mental Maths
Integers
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by AKSHAY GURU VARADHARAJAN
· Class 5
How many ten thousandths are in 3.5692?
Mental Maths
Fractions and Decimals
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by AKSHAY GURU VARADHARAJAN
· Class 5
450 ml = _____ % of 1 liter.
Mental Maths
Mensuration
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by AKSHAY GURU VARADHARAJAN
· Class 5
An angle which measures more than 0° and less than 90° is called
Mental Maths
Other
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people 2 answers
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