2.8×1.25 6.4×0.25 1.25×48 1.1×0.34 108×0.3 48×0.56＋0.44×48 9.16×53+47×9.16 7.2×3＋3×2.8
    0.25×4.78×8 1.25×64×0.25 7.5×1.6 1.25×16×2.5 24×7.5 0.32×25×9 1.25×4×0.2 25×2.4
    2.5×0.125×40×80 0.9×9.9 8.6×9+8.6 2.4×11.9+2.4×8.1 0.32×403 0.5×104 1.8×2.5×8 1.25×4.8×0.4
    5.65×98＋5.65×2 1.97×102－2×1.97 10.8×2.1-10.8×0.1 0.24×0.2×0.5 4.9×0.125×80 0.2×9.1+0.2×0.9 5.9×102 0.8×（0.125+125+1.25）
    1.61×10.1 0.25×6.4×4 (1.25－0.125)×4 0.6×101 1.86×7＋6.28×3.5 16.8×17.1－16.8－16.8×6.1 3.6×7.8＋3.6×12.2 4.8×100.1
    0.25×6.2×4 4.8×18＋18×5.2 5.5×9.9＋5.5×0.1 7.8×10.1 6.21×11.2－1.2×6.21 18.6×9.9＋18.6×0.1 1.2×99＋1.2 12.5×64
    0.25×6.2×4 4.8×18＋18×5.2 5.5×9.9＋5.5×0.1 7.8×10.1 6.21×11.2－1.2×6.21 18.6×9.9＋18.6×0.1 1.2×99＋1.2 12.5×64
    0.125×48 9×15-5×9 3.6×1.5-3.6×0.5 2.5×0.24 0.35×2.5×0.8 2.4×0.9+0.1×2.4 2.5×0.32×1.25 0.64×1.25×12.5
    12.5×0.96×8 0.8×0.03×1.25 3.2+3.2×99 28.6×100.1-28.6×0.1 3.23×0.8+6.77×0.8 0.06×15.7-0.06×5.7 0.04×102 5×1.2×0.25
    1.25×2.5×96 12.01×10.9-12.01×0.9 0.25×24 0.31×400 1.25×64 7.6×0.09+0.91×7.6 8×1.25+8×0.75 12.8×8.6+7.2×8.6
    12×9.9＋1.2 0.125×0.25×32 3.65×10.1 0.25×4.8 12.5×0.96×0.8 0.25×0.73×4 12.5×12 1.25×0.2×4
    0.25×0.48×8 (1.25－0.125)×8 3.72×3.5＋6.28×3.5 15.6×13.1－15.6－15.6×2.1 4.8×7.8＋7.8×5.2 56.5×99＋56.5 7.18×10.8－0.8×7.18 18.76×9.9＋18.76×0.1
     0.5×9.9 12.9×9.99+12.9×0.01 7.09×10.8-7.09×0.8 0.4×11-0.4 6.5×10.1 2.5×16+2.5×4 0.25×32×0.125 6.4×1.25×12.5
     0.5×9.9 12.9×99.9+12.9×0.01 7.09×10.8-7.09×0.8 0.4×11-0.4 6.5×10.1 2.5×16+2.5×4 0.25×32×0.125 6.4×1.25×12.5
    2.3×16+2.3×23+2.3 36.5×4.7－36.5×3.7 46×57＋23×86 2.22×9.9+6.66×6.7 1.25×0.32×2.5 3.2×0.6＋2.8×0.6 0.25×4.2 1.5×10.1
    0.65×60+0.65×40 0.31×65+0.31×35 3.14×0.68＋3.14×0.32 7.2×0.2＋2.4×1.4 8.8×1.25 3.9×2.7＋3.9×7.3 1.27×9.8＋1.27×0.2 5.4×11-5.4
    7.09×10.8－0.8×7.09 1.7×9.9＋1.7×0.1 1.2×99＋1.2 1.25×2.5×64 3.83×4.56＋3.83×5.44 5×2.5×8 9.7×99＋9.7 27.5×3.7－7.5×3.7
    0.25×8.4 (1.25－0.125)×16 1.25×64 3.72×3.5＋6.28×3.5 15.6×2.1－15.6×1.1 11.11×1.2-44.44×0.3 4.8×7.8＋7.8×5.2 56.5×0.99＋56.5×0.01
     58.5×8= 42.4×6= 36.7×18=
    13.48×48= 3.1×69= 80.3×6= 10.93×25= 9.51×6= 1.08×29= 2.23×39= 0.47×88= 29.2×7=

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