2.71×7.4+27.1×3.6-2.71要用递等式计算,一定要简便!

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2.71×7.4+27.1×3.6-2.71要用递等式计算,一定要简便!

2.71×7.4+27.1×3.6-2.71要用递等式计算,一定要简便!
2.71×7.4+27.1×3.6-2.71
要用递等式计算,一定要简便!

2.71×7.4+27.1×3.6-2.71要用递等式计算,一定要简便!
2.71×7.4+27.1×3.6-2.71
=2.71*7.4+2.71*36-2.71
=2.71*(7.4+36-1)
=2.71*42.4
=114.904

2.71×7.4+2.71×3.6-2.71
=2.71*(7.4+3.6-1)
=2.71*10
=27.1

125.204

=2.71*(7.4+3.6-1)
=27.1