NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 10: ALGEBRAIC EXPRESSIONS

Fill in the Blanks

Sum or difference of two like terms is ____.

In the formula, area of circle = \(\pi r^2\), the numerical constant of the expression \(\pi r^2\) is ____.

\(3a^2b\) and \(-7ba^2\) are ____ terms.

\(-5a^2b\) and \(-5b^2a\) are ____ terms.

In the expression \(2\pi r\), the algebraic variable is ____.

Number of terms in a monomial is ____.

Like terms in the expression \(n(n + 1) + 6 (n - 1)\) are ____ and ____.

The expression 13 + 90 is a ____.

The speed of car is 55 km/hrs. The distance covered in y hours is ____.

\(x + y + z\) is an expression which is neither monomial nor ____.

If \((x^2y + y^2 + 3)\) is subtracted from \((3x^2y + 2y^2 + 5)\), then coefficient of y in the result is ____.

− a − b − c is same as − a − ( ____ ).

The unlike terms in perimeters of following figures are ____ and ____.

On adding a monomial ____ to −2x + 4y^2 + z, the resulting expression becomes a binomial.

3x + 23x^2 + 6y^2 + 2x + y^2 + ____ = 5x + 7y^2.

If Rohit has 5xy toffees and Shantanu has 20yx toffees, then Shantanu has ____ more toffees.