Tamil Nadu Board Solutions for Chapter: Number System, Exercise 6: Exercise

Simplify: $23.5-27.89+35.4-17$

Sulaiman bought $3.350 \mathrm{kg}$ of Potato,$2.250 \mathrm{kg}$ of Tomato and some Onions. If the weight of the total items are $10.250 \mathrm{kg},$ then the weight of Onions is $k \mathrm{kg}$, find the value of $k$

What should be subtracted from $7.1$ to get  $0.713$? 

If $35.6 \mathrm{km}$ less than $53.7 \mathrm{km}$ is $k \mathrm{km}$, find the value of $k$

Akilan purchased a geometry box for $₹25.75$, a pencil for $₹3.75$ and a pen for $₹17.90$. He gave $₹50$ to the shopkeeper. What amount did he get back?

Find the perimeter of an equilateral triangle in $\mathrm{cm}$, with a side measuring $3.8 \mathrm{cm}$.

Round $99.95$  to the nearest tenth place.

The length and breadth of a rectangle is $23.5 \mathrm{cm}$ and $1.5 \mathrm{cm}$ respectively. Find the area of the rectangle.