Tamil Nadu Board Solutions for Chapter: Numbers, Exercise 21: Practice

Subtract by striking the beads.

$48-5$

Subtract by striking the beads.

$78-35$

Subtract using abacus.

$36-3$

Subtract using an abacus.

$69-47$

Find the value:

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 8& 4\\ -& 7& 3\end{array}}$

Find the value:

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 4& 8\\ -& & 7\end{array}}$

Find the difference.

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 7& 2\\ -& 3& 2\\ & & \end{array}}$

Find the difference.

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 6& 0\\ -& 2& 0\\ & & \end{array}}$