7.4*5.6+7.4+5.4-74*0.1(简算)

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7.4*5.6+7.4+5.4-74*0.1(简算)7.4*5.6+7.4+5.4-74*0.1(简算)7.4*5.6+7.4+5.4-74*0.1(简算)7.4*5.6+7.4+5.4-74*0.1

7.4*5.6+7.4+5.4-74*0.1(简算)
7.4*5.6+7.4+5.4-74*0.1(简算)

7.4*5.6+7.4+5.4-74*0.1(简算)
7.4*5.6+7.4+5.4-74*0.1
=7.4*5.6+7.4+5.4-7.4*1
=7.4*(5.6+5.4-1)
=7.4*10
=74

7.4(5.6+1)+5.4_7.4
=7.4*6.6+5.4_7.4

7.4*5.6+7.4+5.4-74*0.1
=7.4*(5.6+5.4-1)
=7.4*10
=74 .