Try forming the sentence

[Lim Jia]

Does the ( 19 + 19 - 1 ) x 19 + 2 x 3 x 5 have (47 x 47 + 10 x 10 ) x 5 x 5 - 3 x 3 or (47 x 10 + 47 x 10 + 47 x 10 + 47 x 10 - 1) x 3 ? or lay 7 x (800 + 9)? Is there one in your neighborhood 1 / 50 ? What about the 2 x 13 x 13 ? Or the 3 x 3 x 3 x 3 x 101 - 3000? The (50 x 50 x 3 + 1) x 6 - (50 x 50 x 4)? (Of course, the plural of (50 x 50 x 3 + 1) x 6 - (50 x 50 x 4) is (8 - 1) x 8 x ( 8 x ( 8 x (8 + 1 + 1) - 1 ) - 1 ), isn't it.)

[Heaventears]

i sort of came across this before, called the upside down calculator?

[Lim Jia]

Spoiler:

1 5x67 17x17+13 1+7x7+1 3x(2x2x2x2x2x2x2x2+1)", (3x4x7x13+3/10)x100/2 (4x6x4x6-7)x(5x5x5x5-, "3/6 (3x17/2+1/5)x3 3/5 4.7x3/20

try this

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