2.8x5.6+3.4x4/5＋280％
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2.8×5.6+3.4×4/5+280%
=2.8×5.6+3.4×0.8+2.8
=15.68+2.72+2.8
=21.2
=2.8×5.6+3.4×0.8+2.8
=15.68+2.72+2.8
=21.2
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2.8×5.6+3.4×4/5+280%
=2.8×5.6+3.4×0.8+2.8
=15.68+2.72+2.8
=21.2
=2.8×5.6+3.4×0.8+2.8
=15.68+2.72+2.8
=21.2
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2.8×5.6+3.4×4/5+280℅
=15.68+2.72+2.8=21.2
2.8×5.6=15.68
3.4×4/5=3.4×0.8=2.72
=15.68+2.72+2.8=21.2
2.8×5.6=15.68
3.4×4/5=3.4×0.8=2.72
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