Senior KG Mental Maths Student Questions

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Showing: All Grades / Mental Maths (269 questions)

by RAJANYA MONDAL · Class 7

The length of a rectangle is increased by 20% and its breadth is decreased by 20%. What is the percentage change in its area?

Mental Maths Mensuration 0 3 answers 67%
by ADWAITH KUMAR JHA · Class 3

What is the ¼ of 500's ½-10

Mental Maths Fractions 0 3 answers 67%
by RAJANYA MONDAL · Class 7

What minimum possible number should be added to 3365 to get a cube number?

Mental Maths Cube and Cube Roots 0 6 answers 100%
by RAJANYA MONDAL · Class 7

What is the smallest number by which 675 must be multiplied to make it a perfect cube?

Mental Maths Cube and Cube Roots 0 3 answers 100%
by ADWAITH KUMAR JHA · Class 3

What is 2×2×2×2×2?

Mental Maths Multiplication and Division 0 2 answers 50%
by RAJANYA MONDAL · Class 7

What is the cube of 19?

Mental Maths Cube and Cube Roots 0 2 answers 50%
by RAJANYA MONDAL · Class 7

What is the square root of 13225?

Mental Maths Square and Square Roots 0 4 answers 100%
by RAJANYA MONDAL · Class 7

What is the value of x and y if 3x + 2y =7 and 3x-2y= -1

Mental Maths Algebra 1 5 answers 100%
by RAJANYA MONDAL · Class 7

In a two digit number, the tens place is 2 more than the unit digit. If both the digits adds up to 6 and when 18 is subtracted the digits are reversed, find the two digit number.

Mental Maths Number System 0 3 answers 100%
by ADWAITH KUMAR JHA · Class 3

9)72(8 72 00 What is remainder?

Mental Maths Multiplication and Division 0 2 answers 100%
by RAJANYA MONDAL · Class 7

Convert 7684 x 10^ -2 into decimals.

Mental Maths Number System 0 4 answers 75%
by RAJANYA MONDAL · Class 7

If 1/x is added with 1/ x^2-1 what is the result?

Mental Maths Algebra 0 5 answers 100%
by RAJANYA MONDAL · Class 7

What do you get when (a+b) is multiplied with (a^2-ab+b^2)

Mental Maths Algebra 0 4 answers 100%
by SATYAKI SAIN · Class 4

69÷3×3÷1÷3

Mental Maths Multiplication and Division 0 0 answers 0%
by SATYAKI SAIN · Class 4

93/3*3/1?3*3

Mental Maths Multiplication and Division 0 0 answers 0%
by RAJANYA MONDAL · Class 7

A cube has a total surface area of 294 cm². Find its side length and volume.

Mental Maths Mensuration 0 4 answers 100%
by RAJANYA MONDAL · Class 7

What is the value of the last two digits of 2^20?

Mental Maths Playing with Numbers 0 4 answers 75%
by RAJANYA MONDAL · Class 7

Factorize x^2-2x+1-x^2+2xy-y^2

Mental Maths Algebra 1 6 answers 100%
by RAJANYA MONDAL · Class 7

What is the value of 111 111 1 x 111 111 1 ?

Mental Maths Playing with Numbers 0 5 answers 80%
by RAJANYA MONDAL · Class 7

If the hypoteneus of a right-angled triangle is 5cm, what is its area?

Mental Maths Mensuration 2 14 answers 93%

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