Question 1 :
What should be subtracted from 2a + 8b + 10 to get - 3a + 7b + 16?
Question 2 :
Identify, in the given expression, terms which are not constants. Give their numerical coefficients: $13-y^{2}$
Question 3 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1c93cf59b460d7261e963.jpeg' />
State true or false: In the given figure, the tree diagram is a correct representation of the terms and their factors of the exression $5xy^2+7x^2y$.
Question 4 :
Find the value of the following expression, when x = - 1:
2x - 7
Question 5 :
Identify the numerical coefficients of terms (other than constants) in expression:
$3\cdot 14r^{2}$
Question 6 :
State if the given pair of expressions are like or unlike. $15x, -21x$
Question 10 :
The given pair of terms $-7x\ ,\ \frac{5}{2}x$ are like terms ?
Question 12 :
Identify the numerical coefficients of terms (other than constants ) in the given expression $3.14r^2$.
Question 14 :
Add :
a + b - 3 , b - a + 3, a - b + 3
Question 15 :
From the sum of $4+3x$ and $5-4x+2x^2$ subtract the sum of $3x^2-5x$ and $-x^2+2x+5$.
Question 16 :
Simplify the expression and find its value when a=5 and b=-3 , $2\left(a^2+ab\right)+3-ab$.
Question 17 :
Classify the following expression as a monomial,a binomial or a trinomial : $xy+5$
Question 18 :
Identify the numerical coefficients of terms (other than constants ) in the given expression $-p^2q^{2}+7pq$.
Question 19 :
Simplify the expression and find their values if x = 3, a = - 1, b = - 2.
2 - 8x + 4x + 4