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4.8+8.63+5.2+0.37 1.76+0.195+3.24 -0.195 2.35+1.713+0.287+7.65
3.07-0.38-1.62 23.4-0.8-13.4-7.2 0.25×36
12.7-(2.7+0.84) 7.6×0.8+0.2×7.6 0.85×199
3.12+3.12×99 28.6×101-28.6 63.4÷2.5÷0.4
3.9÷(1.3×5) 4.8×7.8+78×0.52 400.6× 7-2003×0.4
239×0.72+956×0.82 2.5×5.79×0.125×32 4.7×28+36×9.4