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2.5*32*0.125
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2.5*32*0.125
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2.5*32*0.125
=2.5×4×8×0.125
=(2.5×4)×(8×0.125)
=10×1
=10
=2.5×4×8×0.125
=(2.5×4)×(8×0.125)
=10×1
=10
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