Fill in the blanks.

$4+\mathrm{}(6+7)\mathrm{}=\mathrm{}(4+\mathrm{}$  $)+7$

 

Add the following numbers. Put the tens in the correct place.

$\begin{array}{cccc}& & & 9\\ & & & 4\\ & +& & 7\\ & & & \end{array}$

Find the number $10$ more than $475$$?$

Find the number $100$ more than $483$$?$

Add the three numbers.

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 3& 6\\ & 2& 5\\ +& 2& 7\\ & & \end{array}$

Add the following numbers. put the tens in the correct place.

$\begin{array}{cccc}& & & 8\\ & & & 5\\ & +& & 2\\ & & & \end{array}$

Find the number $100$ more than $628$$?$

Add the following numbers. put the tens in the correct place.

$\begin{array}{cccc}& & & 8\\ & & & 4\\ +& & & 1\\ & & & \end{array}$

Add the following numbers:

$\begin{array}{cccc}& 1& & 4\\ & 2& & 2\\ +& 1& & 0\\ & & & \end{array}$

Add the following numbers by regrouping.

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

Find the number $100$ more than $339$$?$

Add the three numbers. 

$\underline{\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 3& 3\\ & 4& 8\\ +& 1& 0\end{array}}$

Add the following numbers by regrouping.

$\begin{array}{cccc}& 5& & 1\\ +& & & 9\\ & & & \end{array}$

Find the number $100$ more than $527$$?$

Add the following numbers by regrouping.

$\begin{array}{cccc}& 1& & 6\\ +& 3& & 5\\ & & & \end{array}$

Find the number $100$ more than $761$$?$

Find the number $100$ more than $813$$?$

Add the following numbers:

$\begin{array}{cccc}& 4& & 7\\ & 2& & 0\\ +& 1& & 1\\ & & & \end{array}$

Find the number $100$ more than $475$$?$

Add the three numbers.

$\begin{array}{ccc}& \mathrm{T}& \mathrm{O}\\ & 5& 0\\ & 2& 7\\ +& 1& 5\\ & & \end{array}$