How many squares are there in the picture? How many matchsticks are used to make it? How many matchsticks are needed to make five squares like this? In what different ways can we state the relation between the number of squares and number of matchsticks? Write them using letters.

All children in the school bought pens from the co-operative store, at $₹5$ each. Write in the table, how much the children of various classes paid.

In what all ways can we say the relation between the number of children and the amount they paid? Write them using letters.

What is the perimeter of a square of side $5$ centimetres? What about the perimeter of a square of side $6$ centimetres? In what all ways can we say the relation the length of a side and perimeter of a square? Write all these using letters.

How much money does $5$ ten rupee notes make? What about $7$ ten rupee notes? Using $t$ to denote the number of ten rupee notes and $a$ to denote the total amount, in what all ways can we write this relation?

What is the total price of $5$ pens, each of price $8$ rupees? What is the price of $10$ notebooks, each of price $12$ rupees?

In what all ways can we say the relation between the price of something, the number bought and the total price?

What is the total price of $5$ pens, each of price $8$ rupees? What is the price of $10$ notebooks, each of price $12$ rupees?

Taking the price of an article as $p$, their number as $n$ and the total price as $t$, in what all ways can we write the relations between $p, n$ and $t$?

One litre of kerosene weighs $800$ grams. If the weight of $\frac{1}{2}$ litre of kerosene is $k$ kilograms, then find the value of $k$ upto one decimal place.

One litre of kerosene weighs $800$ grams. If the weight of $\frac{1}{2}$ litre of kerosene is $k$ kilograms, then find the value of $k$ up to one decimal place.

One litre of kerosene weighs $800$ grams. If the weight of $1$ millilitre of kerosene is $k$ grams, then find the value of $k$.