Q. Given Munnus's age to be $x$ years, ca you guess what $(x-2)$ may show .can you guess what $(x+4)$ may show? what $(3x+7)$ may show?

Q. Meena, Beena, and Leena are climbing the step to the hilltop. Meena is at step $s$, Beena is $8$ steps ahead, and Leena $7$ steps behind. where are Beena and Meena $?$ The total number of steps to the hilltop is $10$ less than $4$ times what Meena has reached. Express the total number of steps using $s$.

Q. A cube is a three-dimensional figure as shown in fig. It has six faces and all of them are identical squares. The length of an edge of the cube is given by $l$. Find the formula from the total length of the edges of a cube.

Q. A bird flies $1$ kilometer in one minute. Can you express the distance covered by the bird in terms of its flying time in minutes? [use $t$ for flying time in minutes]

Q. Radha is drawing a dot Rangoli with chalk powder. She has 9 dots in a row. How many dots will her Rangoli have for r rows ? How many dots are there if there are 8 rows ? If there are 10 rows ?

Q. The length of rectangular hall is $4$ meters less than $3$ times the breadth of the hall. What is the length, if the breadth is $b$ meters?

Q. Give expressions for the following cases.
(a) $7$ added to $p$
(b) $7$ subtracted from$p$
(c) $p$ multiply by $7$
(d) $p$ divide by $7$
(e) $7$ subtracted from $-m$
(f) $-p$ multiply by $5$
(g) $-5$ divided by $5$
(h) $p$ multiply by $-5$

Q. The diameter of a circle is a line which joins two points on the circle and also passes through the centre of the circle. (In the adjoining figure $AB$ is a diameter of the circle; $C$ is its centre.) Express the diameter of the circle $\left(d\right)$ in terms of its radius $\left(r\right).$

Q. Mother has made laddus. She give some laddus to guests and family members; still $6$ laddus remaining. If the number of laddus mother gave away is $l$, how many laddus did she make?

Q. Given $n$ students in the class like football, what may $2n$ show? What may $\frac{n}{2}$ show?

Q. Leela is Radha's younger sister. Leela is $4$ years younger than Radha. Can you write Leela's age in terms of Radha's age? Take Radha's age to be $x$ years.

Q. Find the rule which gives the number of matchsticks required to make the following matchstick patterns. Use a variable to write the rule.
A pattern of letter $T$ as $T$.

Q. The side of an equilateral triangle is shown by $l$. Express the perimeter of the equilateral triangle using $l$.

Q. Given Sara's age today to be $y$ years. Think of her age in the future or in the past. What will the following expression indicate? $y+7,y-3,y+4\frac{1}{2},y-2\frac{1}{2}$.

Q. Which out of the following are expression with numbers only?
(a) $y+3$
(b) $(7\times 20)-8z$
(c) $5(21-7)+7\times 2$
(d) $5$
(e) $3x$
(f) $5-5n$
(g) $(7\times 20)-(5\times 10)-45+p$

Q.

A rectangular box has height $hcm$. Its length is $5$ times its height and breadth is $10cm$ less than its length. Express the length and breadth in terms of the height.

Q. State which of the following are equation (with a variable) given reason and tell your answer. identify the variable from the equation with a variable.
$(7\ast 3)-19=8$

Q.

Make up as many expressions with numbers (no variables) as you from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.

Q. A bus travels at $vkm$ per hour. It is going from Daspur to Beespur. After the bus has traveled $5$ hours, Beespur is still $20km$ away. What is the distance from Despur to Beespur ? Express it using $v$

Q. Find the rule which gives the number of matchsticks required to make the following matchstick patterns. Use a variable to write the rule.
A pattern of letter Z as $Z$.