198×0.51 1.25×2.5 0.8×72.4×12.5198×0.51 1.25×2.5 0.8×72.4×12.5 5.2×10.1 2.5×37+6.3×2.5 3.2×99+3.2 能简便就简便

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198×0.511.25×2.50.8×72.4×12.5198×0.511.25×2.50.8×72.4×12.55.2×10.12.5×37+6.3×2.53.2×99+3.2能简便就简便198×

198×0.51 1.25×2.5 0.8×72.4×12.5198×0.51 1.25×2.5 0.8×72.4×12.5 5.2×10.1 2.5×37+6.3×2.5 3.2×99+3.2 能简便就简便
198×0.51 1.25×2.5 0.8×72.4×12.5
198×0.51 1.25×2.5 0.8×72.4×12.5 5.2×10.1 2.5×37+6.3×2.5 3.2×99+3.2 能简便就简便

198×0.51 1.25×2.5 0.8×72.4×12.5198×0.51 1.25×2.5 0.8×72.4×12.5 5.2×10.1 2.5×37+6.3×2.5 3.2×99+3.2 能简便就简便