Addition

Find the sum.

$243+456$

Find the total number of beads.

Look for linking numbers to save time in written addition.

$\begin{array}{cccc}& & 2& 7\\ & & 2& 2\\ & & 2& 3\\ +& & 1& 8\\ & & & \end{array}$

Look for a pattern in the answer.

$72+39$

Look for a pattern in the answer.

$62+59$

Look for a pattern in the answer.

$85+38$

Complete the following.

$\mathrm{T}\mathrm{O}57+29$

Solve using trading.

$\underline{\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 7& 9\\ +& & 4& 5\\ & & & \end{array}}$

Complete the addition problem.

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 4& 3\\ +& 5& 5\\ & & \end{array}}$

$41+39$ is:

$49+49$ is:

Add the numbers:

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 6& 3\\ +& 2& 8\\ & & \end{array}$

Add the numbers:

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 7& 9\\ +& 1& 8\\ & & \end{array}$

Add the numbers:

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 2& 7\\ +& 5& 6\\ & & \end{array}$

Add the numbers:

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 4& 5\\ +& 4& 9\\ & & \end{array}$

Add and find the sum.

$\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 6& 4\\ +& & 8& 8\\ & & & \end{array}$

Add and find the sum.

$\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 5& 8\\ +& & 7& 6\\ & & & \end{array}$

Add and find the sum.

$\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 6& 9\\ +& & 6& 8\\ & & & \end{array}$

Add and find the sum.

$\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 8& 3\\ +& & 3& 7\\ & & & \end{array}$

Add and find the sum.

$\begin{array}{cccc}& \mathrm{H}& \mathrm{T}& \mathrm{O}\\ & & 6& 4\\ +& & 5& 7\\ & & & \end{array}$