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Not sure if decimal are allowed, but here's my attempt

1 operator, score 1.1765956249508713525610395676804...

$$123.4/56.789 \approx 2.17295603 \approx \pi - 0.96863662$$

3 operator, score 2.06714352383430453303221463889...

$$(1234/56)/(\lfloor7.89\rfloor) \approx 3.14795918 \approx \pi + 0.00636653 $$

Not sure if decimal are allowed, but here's my attempt

1 operator, score 1.1765956249508713525610395676804...

$$123.4/56.789 \approx 2.17295603 \approx \pi - 0.96863662$$

3 operator, score 2.06714352383430453303221463889...

$$(1234/56)/(\lfloor7.89\rfloor) \approx 3.14795918 \approx \pi + 0.00636653 $$

1 operator, score 1.1765956249508713525610395676804...

$$123.4/56.789 \approx 2.17295603 \approx \pi - 0.96863662$$

Not sure if decimal are allowed, but here's my attempt

1 operator, score 1.1765956249508713525610395676804...

$$123.4/56.789 \approx 2.17295603 \approx \pi - 0.96863662$$

3 operator, score 2.06714352383430453303221463889...

$$(1234/56)/(\lfloor7.89\rfloor) \approx 3.14795918 \approx \pi + 0.00636653 $$

11 (5+3+3) Operator, Score = 0.77860070344742107963389818479...

$$\sqrt { \sqrt { \frac {8^9\times(67+(.5\times.4))^2}{13!} } } \approx 3.14099343\approx \pi + 0.00059922$$

2 square root, 2 multiply, 1 divide (changed to fraction in here), 2 power (to the two/nine).

9 (6+3) Operator, Score = 0.732449171170760848408681727260... - 0.349065850398865915384738153698... i

$$\sqrt {\sqrt {\frac {576\times(98-3)^4}{12!}}} \approx 3.14590051946 \approx \pi - 0.00430786587$$

2 square root, 1 multiply, 1 minus, 1 divide (changed to fraction in here), 1 power (to the four), 1 factorial.

1 operator, score 1.1765956249508713525610395676804...

$$123.4/56.789 \approx 2.17295603 \approx \pi - 0.96863662$$