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High score reward! ~ who can help me solve the simple math formula of senior one!
(1) solution: the original formula = 0.1.005438+0 =100.

(2) solution: the original formula =(-3/4)X(- 1 you 1/2)÷(-2 you 1/4).

=-3/4×(-3/2)×(-4/9)=- 1/2

(3) Solution: The original formula =(-7)X(-56)X0÷(- 13)=0.

(4) Solution: The original formula =-9x (-11) ÷ 3 ÷ (-3) =-1.

I made it myself. If I am wrong, don't blame me.

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