
9999.9✖️7777.8➕3333.3✖️6666.6等于多少,简算?
2个回答
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9999.9×7777.8+3333.3×6666.6
=9999.9×7777.8+3333.3×3×2222.2
=9999.9×7777.8+9999.9×2222.2
=9999.9×(7777.8+2222.2)
=9999.9×10000
=99999000
=9999.9×7777.8+3333.3×3×2222.2
=9999.9×7777.8+9999.9×2222.2
=9999.9×(7777.8+2222.2)
=9999.9×10000
=99999000
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