Fill in the blanks:

……………. = $\frac{3}{10}=$$\mathrm{three}-\mathrm{tenths}$

Fill in the blanks:

$6\mathrm{parts}=$$.........=\mathrm{six}-\mathrm{tenths}$

Fill in the blanks:

$4\mathrm{parts}=\dots \dots \dots \dots =\mathrm{four}\mathrm{tenths}$

Simplify $:$ $8$$-$$($$\frac{3}{4}$$+$$\frac{2}{10}$$)$ $÷$$($$2\frac{2}{4}$$-$$\frac{3}{5}$$)$

Fill in the blanks:

$.................=5.006\times {10}^{10}$

Fill in the blanks with any of the three symbols $<,>$and $=$to make a correct statement

$\frac{9}{100}\_\_\_\_\frac{9}{10}$