| n | 1489 |
| 0 | $${\left(1+8-9\right)4}$$ |
| 1 | |
| 2 | $${4-\frac{18}{9}}$$ |
| 3 | $${8-14-9}$$ |
| 4 | $${\frac{41-9}{8}}$$ |
| 5 | $${18-\left(4+9\right)}$$ |
| 6 | $${\frac{18}{9}+4}$$ |
| 7 | $${91-84}$$ |
| 8 | $${18\frac{4}{9}}$$ |
| 9 | $${\left(\frac{8}{4}-1\right)9}$$ |
| 10 | $${8-\frac{1-9}{4}}$$ |
| 11 | $${\frac{1}{\frac{4}{8}}+9}$$ |
| 12 | $${1+\frac{8}{4}+9}$$ |
| 13 | $${94-81}$$ |
| 14 | $${14\left(9-8\right)}$$ |
| 15 | $${14-8-9}$$ |
| 16 | $${\frac{8}{\frac{4}{9-1}}}$$ |
| 17 | $${19-\frac{8}{4}}$$ |
| 18 | $${4 \cdot 9-18}$$ |
| 19 | $${1+\frac{8}{\frac{4}{9}}}$$ |
| 20 | $${\frac{1+9}{\frac{4}{8}}}$$ |
| 21 | $${19+\frac{8}{4}}$$ |
| 22 | $${\frac{89-1}{4}}$$ |
| 23 | $${18-4-9}$$ |
| 24 | $${41-\left(8+9\right)}$$ |
| 25 | |
| 26 | $${\left(1+\frac{9}{4}\right)8}$$ |
| 27 | $${\left(1+\frac{8}{4}\right)9}$$ |
| 28 | $${1\left(4 \cdot 9-8\right)}$$ |
| 29 | $${48-19}$$ |
| 30 | |
| 31 | $${49-18}$$ |
| 32 | $${81-49}$$ |
| 33 | $${\left(4-1\right)8+9}$$ |
| 34 | |
| 35 | $${\left(1-8\right)\left(4-9\right)}$$ |
| 36 | $${\left(18-9\right)4}$$ |
| 37 | $${1-\left(4-8\right)9}$$ |
| 38 | $${\frac{19}{\frac{4}{8}}}$$ |
| 39 | $${1\left(48-9\right)}$$ |
| 40 | $${1+48-9}$$ |
| 41 | $${1\left(49-8\right)}$$ |
| 42 | $${1+49-8}$$ |
| 43 | $${91-48}$$ |
| 44 | $${\left(19-8\right)4}$$ |
| 45 | $${81-4 \cdot 9}$$ |
| 46 | |
| 47 | |
| 48 | $${89-41}$$ |
| 49 | $${\left(1+4\right)8+9}$$ |
| 50 | |
| 51 | $${19+4 \cdot 8}$$ |
| 52 | |
| 53 | $${\left(1+4\right)9+8}$$ |
| 54 | $${\left(14-8\right)9}$$ |
| 55 | |
| 56 | $${48-1-9}$$ |
| 57 | $${98-41}$$ |
| 58 | $${1+48+9}$$ |
| 59 | $${91-4 \cdot 8}$$ |
| 60 | $${8\left(9-1\right)-4}$$ |
| 61 | |
| 62 | |
| 63 | $${18 \cdot 4-9}$$ |
| 64 | $${4\left(8-1-9\right)}$$ |
| 65 | $${84-19}$$ |
| 66 | |
| 67 | $${18+49}$$ |
| 68 | $${19 \cdot 4-8}$$ |
| 69 | $${1+4\left(8+9\right)}$$ |
| 70 | $${8\left(9-\frac{1}{4}\right)}$$ |
| 71 | |
| 72 | $${\left(1+8+9\right)4}$$ |
| 73 | |
| 74 | $${84-\left(1+9\right)}$$ |
| 75 | $${89-14}$$ |
| 76 | $${94-18}$$ |
| 77 | $${1+4+8 \cdot 9}$$ |
| 78 | |
| 79 | $${91-\left(4+8\right)}$$ |
| 80 | |
| 81 | $${18 \cdot 4+9}$$ |
| 82 | |
| 83 | |
| 84 | $${98-14}$$ |
| 85 | $${1\left(89-4\right)}$$ |
| 86 | $${1-4-89}$$ |
| 87 | $${1-8-94}$$ |
| 88 | |
| 89 | $${91-\frac{8}{4}}$$ |
| 90 | $${18\left(9-4\right)}$$ |
| 91 | $${\left(4+9\right)\left(8-1\right)}$$ |
| 92 | $${4-1-89}$$ |
| 93 | $${1\left(4+89\right)}$$ |
| 94 | $${1+4+89}$$ |
| 95 | $${1-4-98}$$ |
| 96 | $${\left(4-1-9\right)8}$$ |
| 97 | |
| 98 | |
| 99 | $${\left(4-1-8\right)9}$$ |
| 100 | |