Nanita Chopra Solutions for Chapter: Mental Maths (Ch-10, 11, 12 and 13), Exercise 1: MENTAL MATHS (Ch-10, 11, 12 and 13)

Tick the correct answers.
It is $7:30$ now. Half an hour ago was ________.

$1$ coin of $₹1 =$ _____ coins of $50 \mathrm{p}$

$2$ notes of $₹50=$ $₹$_____

$1$ note of $₹ 100=$ _____ notes of $₹ 10$.

Fill in the blanks.
$25 \mathrm{p}+25 \mathrm{p}+$ _____ $= ₹1$

$75 \mathrm{p} – 25 \mathrm{p} =$ _____  $\mathrm{p}$.

There are different kinds of birds in a bird house as shown. How many of each kind of birds do you see? Complete the table.

Bird
Number of Bird

Divide by repeated subtraction and fill in the boxes.