43×28+33×18+66×39+33×66的简便运算方式

Question

43×28+33×18+66×39+33×66的简便运算方式

Answer 1

43×28+33×18+66×39+33×66
＝43×28+66×（9+39+33）
＝43×28+66×81
＝1204+5346
＝6550
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Answer 2

解：43X28十33X18十66X39十33X66
=33X(18十66十2X39)十(33十10)X28
=33X(84十78)十33X28十10X28
=33X162十33X28十280
=33X(162十28)十280
=33X190十280
=33X(200一10)十280
=6600一330十280
=6600一(330一280)
=6600一50
=6550

Answer 3

43×28+33×18+66×39+33×66的简便运算方式
=43×28+33×18+33×78+33×66
=43×28+33×（18+78+66）
=43×28+33×162
=1204+5346
=6550本回答被网友采纳