Solve the following addition, subtraction and missing digit problems using suitable rearrangement and checking.

ii) $829 + 106 + 244 + 121$

iii) $488 + 761 + 512 + 239$

2. Do the subtraction sums and check your answer by suitable addition.

i) $70,546 - 56,924$

The answer is correct.

ii) $81,329 - 76,408$

The answer is correct.

3. In the sums given below replace the * with suitable digits.

i)

$5 + 9 = 14$. So, the last $*$ is 4, carry over 1.

$7 + 6 + 1 (\text{carry over}) = 14$. So, the second to last $*$ is 4, carry over 1.

$* + 5 + 1 (\text{carry over}) = 9$. So, $* + 6 = 9 \implies * = 3$.

$2 + * = 7$. So, $* = 5$.
The completed sum is:

The missing digits are $\boxed{\text{3, 5, 4, 4}}$.

ii)

$* + 8 = 0$ (meaning 10). So, $* = 2$, carry over 1.

$* + 6 + 1 (\text{carry over}) = 2$ (meaning 12). So, $* + 7 = 12 \implies * = 5$, carry over 1.

$* + 4 + 1 (\text{carry over}) = 0$ (meaning 10). So, $* + 5 = 10 \implies * = 5$, carry over 1.

$* + 2 + 1 (\text{carry over}) = 8$. So, $* + 3 = 8 \implies * = 5$.
The completed sum is:

The missing digits are $\boxed{\text{5, 5, 5, 2}}$.

4. Shanu deposited ₹ 1256 in his bank account. Later, he withdrew ₹ 696. How much money was left in his account?

Initial amount = ₹ 1256
Withdrawn amount = ₹ 696

The money left in his account is $\boxed{\text{₹ 560}}$.