4455

$1 = \frac{45}{45}$	$2 = \sqrt{44 + 5} - 5$	$3 = \sqrt{54 - 45}$	$4 = 5 - 5^{4 - 4}$
$5 = \frac{45}{5} - 4$	$6 = \frac{54}{4 + 5}$	$7 = \sqrt{\frac{45}{5}} + 4$	$8 = 4 + 4 - 5 + 5$
$9 = 54 - 45$	$10 = \frac{45 - 5}{4}$	$11 = 55 - 44$	$12 = \sqrt{44 + 5} + 5$
$13 = \frac{45}{5} + 4$	$14 = \sqrt{(54 - 5) \cdot 4}$	$15 = \sqrt{44 \cdot 5 + 5}$	$16 = 45 - 4! - 5$
$17 = 5 \cdot 5 - 4 - 4$	$18 = \frac{45 \cdot \sqrt{4}}{5}$	$19 = 44 - 5 \cdot 5$	$20 = 44 - \frac{5!}{5}$
$21 = 4 \cdot 5 - 4 + 5$	$22 = \frac{54}{\sqrt{4}} - 5$	$23 = (4 + 5) \cdot \sqrt{4} + 5$	$24 = 54 - \frac{5!}{4}$
$25 = 45 - 4 \cdot 5$	$26 = 45 - 4! + 5$	$27 = 55 - 4! - 4$	$28 = \sqrt{54 - 5} \cdot 4$
$29 = 54 - 5^{\sqrt{4}}$	$30 = \sqrt{45 \cdot 4 \cdot 5}$	$31 = (4 + 5) \cdot 4 - 5$	$32 = \frac{54}{\sqrt{4}} + 5$
$33 = \frac{45}{5} + 4!$	$34 = 44 - 5 - 5$	$35 = \sqrt{44 + 5} \cdot 5$	$36 = 45 - 4 - 5$
$37 = (4 - \sqrt{4})^{5} + 5$	$38 = 45 - \sqrt{4} - 5$	$39 = 55 - 4 \cdot 4$	$40 = 4 \cdot 5 + 4 \cdot 5$
$41 = 4 \cdot 4! - 55$	$42 = 45 + \sqrt{4} - 5$	$43 = 44 - \frac{5}{5}$	$44 = 44 - 5 + 5$
$45 = \sqrt{45 \cdot 45}$	$46 = 45 - 4 + 5$	$47 = 55 - 4 - 4$	$48 = 45 - \sqrt{4} + 5$
$49 = \sqrt{5 \cdot 5} + 44$	$50 = \sqrt{45^{\sqrt{4}}} + 5$	$51 = 54 + \sqrt{4} - 5$	$52 = 45 + \sqrt{4} + 5$
$53 = 54 + 4 - 5$	$54 = \sqrt{54 \cdot 54}$	$55 = 54 - 4 + 5$	$56 = \frac{4}{4} + 55$
$57 = 54 - \sqrt{4} + 5$	$58 = (5 \cdot 5 + 4) \cdot \sqrt{4}$	$59 = \sqrt{4 \cdot 4} + 55$	$60 = 45 \cdot 4 - 5!$
$61 = 54 + \sqrt{4} + 5$	$62 = 5! - (54 + 4)$	$63 = 54 + 4 + 5$	$64 = 45 + 4! - 5$
$65 = 4 \cdot 5 + 45$	$66 = 4! \cdot 5 - 54$	$67 = \frac{4!}{\sqrt{4}} + 55$	$68 = \frac{5!}{5} + 44$
$69 = 5 \cdot 5 + 44$	$70 = 5^{\sqrt{4}} + 45$	$71 = 4 \cdot 4 + 55$	$72 = \sqrt{\frac{45}{5}} \cdot 4!$
$73 = 54 + 4! - 5$	$74 = 4 \cdot 5 + 54$	$75 = \frac{5!}{4} + 45$	$76 = \sqrt{5 \cdot 5}! - 44$
$77 = {\sqrt{4}}^{5} + 45$	$78 = ?$	$79 = 5! - (45 - 4)$	$80 = (45 - 5) \cdot \sqrt{4}$
$81 = 5! - (44 - 5)$	$82 = 5! - (4! - 5) \cdot \sqrt{4}$	$83 = 54 + 4! + 5$	$84 = \frac{5!}{4} + 54$
$85 = 45 \cdot \sqrt{4} - 5$	$86 = {\sqrt{4}}^{5} + 54$	$87 = \frac{54 + 5!}{\sqrt{4}}$	$88 = 5! - (4 - \sqrt{4})^{5}$
$89 = \frac{445}{5}$	$90 = 45 + 45$	$91 = (4! - 5) \cdot 5 - 4$	$92 = (4! - \frac{5}{5}) \cdot 4$
$93 = 5! - \frac{54}{\sqrt{4}}$	$94 = 5! - (\frac{5!}{4} - 4)$	$95 = 45 \cdot \sqrt{4} + 5$	$96 = 54 \cdot 4 - 5!$
$97 = 4 \cdot 4! + \frac{5}{5}$	$98 = (54 - 5) \cdot \sqrt{4}$	$99 = 44 + 55$	$100 = 44 \cdot 5 - 5!$