Mathematics
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current location:Mathematical operation > History of Mathematical Computation
    (0.7+0.7+3.5+0.2)*(1.8+2.1+0.2)*0.12=
    2720.9×0.99
    (0.7+0.7+0.2)*(3.5*4+0.2)*0.12=
    (0.7+0.7+3.5+0.3+0.2)*(2.1+1.8+0.2)*0.12=
    68020.5-67340.3
    68020.5×0.99
    333.4-331.7
    333.4×0.995
    1230.7-1224.6
    1230.7×0.995
    820.6-816.5=
    820.6×0.995
    (2.5+0.6+0.2)*(1.8+2.7+0.2)*0.12= (2.5+0.6+0.2)*(2.1+1.8+0.2)*0.12= (2.5+0.6+0.3+0.2)*(3.5+3.5+0.2)*0.12= (2.5+0.6+0.2)*(1.8+2.1+2.7+1.8+0.2)*0.12= (2.5+0.6+0.3+0.2)*(3.5+0.2)*0.12= (4.2+0.2)*(4.2+3.5+0.21)*0.12=
    51271.8-51015.5
    51271.8×0.995
    2734.6-2720.9
    2734.6×0.995
    68362.3-68020.5=
    68362.3×0.995
    (2.5+0.6+0.3+0.2)*(3.5+0.2)*0.12= (2.15+0.2)*(3.5+0.2)*0.12=

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