Mathematics
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current location:Mathematical operation > History of Mathematical Computation
    40×(5+40) (60+80)×25 (70+8)×25 (20+8)×25 150×(2+70) 15×(90+2) 75×(2+30) 12×(25+100)
    arctan(0.4317)
    50×(2+99) 4×(28+25) 2×(100+88) 20×(67+100) 4×(50+55) 80×(25+36) 25×(8+30) 25×(80+21)
    (2+65)×50 20×(5+29) (2+40)×25 (20+45)×50 (4+50)×25 40×(25+62) 40×(78+25) 5×(20+67)
    tan(arccos0.86)-tan(arccos0.85)
    tan(arccos0.81)-tan(arccos0.85)
    tan(arccos0.8)-tan(arccos0.85)
    tan(arccos0.79)-tan(arccos0.85)
    tan(arccos0.7)-tan(arccos0.85)
    tan(arccos1.02)-tan(arccos0.85)
    tan(arccos0.75)-tan(arccos0.85)
    tan(arccos0.78)-tan(arccos0.85)
    tan(arccos0.78)
    tan(arccos0.85)
    (-4/15)×(-5/13)+(-2/5)×2/7
    -1000+32
    1×(-8)×(-3/1)-1-5
    (3/8-1/6 )×48
    1.257×8
    25.8×990+258

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