0999

$1 = (999 \cdot 0)!$	$2 = \sqrt{9} - 99^{0}$	$3 = \sqrt{99 - 90}$	$4 = 99^{0} + \sqrt{9}$
$5 = \frac{90}{9 + 9}$	$6 = \sqrt{99 - 90}!$	$7 = \frac{90}{9} - \sqrt{9}$	$8 = 9 - 99^{0}$
$9 = 99 - 90$	$10 = 99^{0} + 9$	$11 = \frac{90 + 9}{9}$	$12 = \frac{99}{9} + 0!$
$13 = \frac{90}{9} + \sqrt{9}$	$14 = \sqrt{9}! - 9^{0} + 9$	$15 = \frac{90}{9 - \sqrt{9}}$	$16 = \frac{90}{9} + \sqrt{9}!$
$17 = 9 - 9^{0} + 9$	$18 = \sqrt{90 - 9} + 9$	$19 = \frac{90}{9} + 9$	$20 = \sqrt{9} - 0! + 9 + 9$
$21 = \frac{90}{\sqrt{9}} - 9$	$22 = 0! + \sqrt{9} + 9 + 9$	$23 = \sqrt{9}! - 0! + 9 + 9$	$24 = \frac{90}{\sqrt{9}!} + 9$
$25 = 0! + \sqrt{9}! + 9 + 9$	$26 = 9 - 0! + 9 + 9$	$27 = \frac{90 - 9}{\sqrt{9}}$	$28 = 0! + 9 + 9 + 9$
$29 = \frac{90 - \sqrt{9}}{\sqrt{9}}$	$30 = \sqrt{909 - 9}$	$31 = \frac{90 + \sqrt{9}}{\sqrt{9}}$	$32 = \frac{99}{\sqrt{9}} - 0!$
$33 = \frac{90 + 9}{\sqrt{9}}$	$34 = \frac{99}{\sqrt{9}} + 0!$	$35 = \sqrt{9} \cdot 9 - 0! + 9$	$36 = 90 - \sqrt{9}! \cdot 9$
$37 = \sqrt{9} \cdot 9 + 0! + 9$	$38 = \sqrt{9}! \cdot \sqrt{9}! - 0! + \sqrt{9}$	$39 = \frac{90}{\sqrt{9}} + 9$	$40 = \frac{\sqrt{9}!!}{0 + 9 + 9}$
$41 = \frac{\sqrt{9}!!}{9 + 9} + 0!$	$42 = (0! + \sqrt{9})! + 9 + 9$	$43 = \frac{(\sqrt{9}! - 0!)! + 9}{\sqrt{9}}$	$44 = \sqrt{9}! \cdot 9 - 0! - 9$
$45 = \frac{90}{\sqrt{9}!} \cdot \sqrt{9}$	$46 = \sqrt{9}! \cdot 9 + 0! - 9$	$47 = \sqrt{9}! \cdot 9 - 0! - \sqrt{9}!$	$48 = (9 - 9^{0}) \cdot \sqrt{9}!$
$49 = \frac{(\sqrt{9}! - 0!)!}{\sqrt{9}} + 9$	$50 = \sqrt{9}! \cdot 9 - 0! - \sqrt{9}$	$51 = (9 - 0! + 9) \cdot \sqrt{9}$	$52 = \sqrt{9}! \cdot 9 + 0! - \sqrt{9}$
$53 = (9 - \sqrt{9}) \cdot 9 - 0!$	$54 = (9 - (0 + \sqrt{9})) \cdot 9$	$55 = (9 - \sqrt{9}) \cdot 9 + 0!$	$56 = \frac{(9 - 9^{0})!}{\sqrt{9}!!}$
$57 = (0! + 9 + 9) \cdot \sqrt{9}$	$58 = \sqrt{9}! \cdot 9 + 0! + \sqrt{9}$	$59 = \sqrt{9}! \cdot 9 - 0! + \sqrt{9}!$	$60 = \frac{90}{9} \cdot \sqrt{9}!$
$61 = (0! + \sqrt{9})^{\sqrt{9}} - \sqrt{9}$	$62 = \sqrt{9}! \cdot 9 - 0! + 9$	$63 = 90 - \sqrt{9} \cdot 9$	$64 = (9^{0} + \sqrt{9})^{\sqrt{9}}$
$65 = \frac{(9 - 0!)!}{\sqrt{9}!!} + 9$	$66 = (9 - 0!) \cdot 9 - \sqrt{9}!$	$67 = \sqrt{\frac{(9 - 0!)!}{9} + 9}$	$68 = ?$
$69 = (9 - 0!) \cdot 9 - \sqrt{9}$	$70 = \frac{\sqrt{9}!! - 90}{9}$	$71 = 9 \cdot 9 - 0! - 9$	$72 = 90 - 9 - 9$
$73 = 9 \cdot 9 + 0! - 9$	$74 = 9 \cdot 9 - 0! - \sqrt{9}!$	$75 = 90 - 9 - \sqrt{9}!$	$76 = 9 \cdot 9 + 0! - \sqrt{9}!$
$77 = 9 \cdot 9 - 0! - \sqrt{9}$	$78 = 90 - 9 - \sqrt{9}$	$79 = 9 \cdot 9 + 0! - \sqrt{9}$	$80 = 9 \cdot 9 - 9^{0}$
$81 = \sqrt{90 - 9} \cdot 9$	$82 = 9^{0} + 9 \cdot 9$	$83 = 9 \cdot 9 - 0! + \sqrt{9}$	$84 = 90 - 9 + \sqrt{9}$
$85 = 9 \cdot 9 + 0! + \sqrt{9}$	$86 = 9 \cdot 9 - 0! + \sqrt{9}!$	$87 = 90 - \frac{9}{\sqrt{9}}$	$88 = 90 - \frac{\sqrt{9}!}{\sqrt{9}}$
$89 = 90 - \frac{9}{9}$	$90 = \frac{90}{9} \cdot 9$	$91 = \frac{9}{9} + 90$	$92 = \frac{\sqrt{9}!}{\sqrt{9}} + 90$
$93 = \frac{9}{\sqrt{9}} + 90$	$94 = 99 + 0! - \sqrt{9}!$	$95 = 99 - 0! - \sqrt{9}$	$96 = 90 - \sqrt{9} + 9$
$97 = 99 + 0! - \sqrt{9}$	$98 = 99 - 9^{0}$	$99 = 0 \cdot 9 + 99$	$100 = 9^{0} + 99$