22×72+111×56简便方法怎么算？
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22×72+111×56
=22×2×36+(78+33)×56
=44×36+78×56+33×56
=44×36+11×3×4×14+78×56
=44×36+44×42+78×56
=44×(36+42)+78×56
=78×(44+56)
=7800
=22×2×36+(78+33)×56
=44×36+78×56+33×56
=44×36+11×3×4×14+78×56
=44×36+44×42+78×56
=44×(36+42)+78×56
=78×(44+56)
=7800
追答
22×72+111×56
=22×2×36+(78+33)×56
=44×36+78×56+33×56
=44×36+11×3×4×14+78×56
=44×36+44×42+78×56
=44×(36+42)+78×56
=78×(44+56)
=7800
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