
13.7+6.3÷1.5×2怎么简便计算
2个回答
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13.7+6.3÷1.5×2
=13.7+6.3÷3/2×2
=13.7+6.3×2/3×2
=13.7+2.1×4
=13.7+8.4
=13+8十(0.7+0.4)
=21+1.1
=22.1
=13.7+6.3÷3/2×2
=13.7+6.3×2/3×2
=13.7+2.1×4
=13.7+8.4
=13+8十(0.7+0.4)
=21+1.1
=22.1
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