递等式计算(能巧算的要巧算) 3.75-2.76+1.25-1.04 (6.74+6.74÷6.74-6.74)x6.74

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递等式计算(能巧算的要巧算) 3.75-2.76+1.25-1.04 (6.74+6.74÷6.74-6.74)x6.74
递等式计算(能巧算的要巧算) 3.75-2.76+1.25-1.04 (6.74+6.74÷6.74-6.74)x6.74

递等式计算(能巧算的要巧算) 3.75-2.76+1.25-1.04 (6.74+6.74÷6.74-6.74)x6.74
(1)3.75-2.76+1.25-1.04
=3.75+1.25-2.76-1.04
=5-(2.76+1.04)
=5-3.8
=1.2
(2)(6.74+6.74÷6.74-6.74)x6.74
=(6.74+1-6.74)×6.74
=(6.74-6.74+1)×6.74
=1×6.74=6.74

(1)3.75-2.76+1.25-1.04
=3.75+1.25-2.76-1.04
=5-(2.76+1.04)
=5-3.8
=1.2
(2)(6.74+6.74÷6.74-6.74)x6.74
=(6.74+1-6.74)×6.74
=(6.74-6.74+1)×6.74
=1×6.74=6.74
就这些了!!!!