Addition of Terms

Q.

Fill in the blanks with suitable determiners. - English Q&A

Q.

Add the following:

$3xy,-5xy,7xy$

Q. Add the following algebraic expressions:
$32a^2+21ab+16b^2$, $5a^2+2ab+3b^2$ and $4ab+b^2$

1. $37a^2+27ab+20b^2$
2. $37a^2+23ab+20b^2$
3. $35a^2+27ab+20b^2$
4. $37a^2+27ab+19b^2$

Q. Simplified form of the expression $2z+z^2$ is:

1. $3z$
2. $2z^2$
3. Cannot be simplified further
4. $3z^2$

Q.

Find the sum.

$(7-b)+(3b+2)$

Q. $2x+2x+2x+2x........50\text{times}$
can be written in the simplest form as:

1. $50x$
2. $100x$
3. $50$
4. $100$

Q.

Find the rule which gives the number of matchsticks required to make the below matchstick pattern:-

A pattern of letter $E$as E.

Q.

Find the sum of $8pq+8-2qr\text{and}-7pq-2+2qr$

Q.

Add : $3\mathrm{xy}+7\mathrm{xy}+9\mathrm{xy}$

Q. Sara has $2$ dogs. One dog had a litter of $5x$ puppies last week. Her other dog just had a litter of $7y$ puppies yesterday. How many dogs does Sara have now?

1. $12x$
2. $2+5x+7y$
3. $5x+7y$
4. None of the above

Q.

Add the following

$5x^2{y}^2,7x^2{y}^2,3x^2{y}^2$

Q. In an examination, $+5$ marks are scored by a student if a question is answered correctly and $-2$ marks are scored by a student if a question is answered incorrectly. If Markus attempts $x$ questions correctly and $y$ questions incorrectly, find the total marks scored by Markus in the examination.

1. $5x+2y$
2. $5x\times 2y$
3. $-5x+2y$
4. $5x-2y$

Q.

Add : $3\mathrm{xyz}$ and $-3\mathrm{xyz}$

Q. Each row has “$a$” children’s fantasy books and “$b$” non-fantasy books. Choose the incorrect statement regarding the number of items in 5 rows.

1. The algebraic expression representing the number of items is $5a+5b$.
2. The coefficient of the algebraic expression is $5$.
3. The variables in the algebraic expression are “$a$” and “$b$”.
4. The algebraic expression representing the situation is $25ab$.

Q. Add: $9a+7b-6c$ and $3b+2a+13c$

1. $11a+10b+7c$
2. $11a+10b+6c$
3. $10a+11b+7c$
4. $10a+7b+11c$

Q. Tom has a line segment, as shown in the following picture.


What is the total length of the line segment?

1. $2a+b$
2. $3a+b$
3. $a+3b$
4. $a+2b$

Q.

Find the sum of the given algebraic expression:

$4xy-3yz+2zx,2xy-yz-zx,-xy+5yz+6zx$

Q. During the addition of like terms, remains the same.

1. Variable
2. Variable & Exponent
3. Coefficient
4. Exponent

Q.

Identify the operations ( addition, substraction, multiplication, division ) in the formation of the following expressions and mention how the expressions have been formed ?

$9y-4$

Q. What will we get after adding 3 apples and 5 cats ?

1. 8 apples
2. 8 cats
3. 3 apples and 5 cats
4. None of the above

Q.

Determine whether the expressions are equivalent. Explain your reasoning.

Expression 1	$1.25x+4+0.75x-3$
Expression 2	$2x+1$