66.6×1.8+22.2×4.6简便方法?
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66.6×1.8+22.2×4.6
=22.2×3×1.8+22.2×4.6
=22.2×(5.4+4.6)
=22.2×10
=222
=22.2×3×1.8+22.2×4.6
=22.2×(5.4+4.6)
=22.2×10
=222
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展开全部
22.2×3×1.8+22.2×4.6
=22.2×5.4+22.2×4.6
=22.2×(5.4+4.6)
=22.2×10
=222
=22.2×5.4+22.2×4.6
=22.2×(5.4+4.6)
=22.2×10
=222
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展开全部
=66.6*1.8+22.2*4.6
=22.2*3*1.8+22.2*4.6
=22.2*5.4+22.2*4.6
=22.2*(5.4+4.6)
=22.2*10
=222
=22.2*3*1.8+22.2*4.6
=22.2*5.4+22.2*4.6
=22.2*(5.4+4.6)
=22.2*10
=222
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