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●4.36×1.2+8.8×1.5
=4.36×(1+0.2)+8.8×(1+0.5)
=4.36+0.872+8.8+4.4
=5.232+13.2
=18.432
或
●4.36×1.2+8.8×1.5
=4.36×6×0.2+8.8×5×0.3
=26.16×0.2+44×0.3
=5.232+13.2
=18.432
=4.36×(1+0.2)+8.8×(1+0.5)
=4.36+0.872+8.8+4.4
=5.232+13.2
=18.432
或
●4.36×1.2+8.8×1.5
=4.36×6×0.2+8.8×5×0.3
=26.16×0.2+44×0.3
=5.232+13.2
=18.432
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原式=2.4*(2.18+11*0.5)
=2.4*7.68
=2.5*4*1.92-0.1*7.68
=19.2-0.768
=18.432
=2.4*7.68
=2.5*4*1.92-0.1*7.68
=19.2-0.768
=18.432
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