99.9×0.28-0.666×37

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99.9×0.28-0.666×3799.9×0.28-0.666×3799.9×0.28-0.666×3799.9*0.28-0.666*3=100*0.28-0.028-1.998=28-0.02

99.9×0.28-0.666×37
99.9×0.28-0.666×37

99.9×0.28-0.666×37
99.9*0.28-0.666*3 =100*0.28-0.028-1.998 =28-0.028-1.998 =28-2-0.026 =26-0.026 =25.974 原式=37*2.7*0.28-0.666*37

3.33

99.9×0.28-0.666×37
=0.333×(3×28-2×37)
=0.333×(84-74)
=0.333×10
=3.33

99.9×0.28-0.666×37
=0.333×(3×28-2×37)
=0.333×(84-74)
=0.333×10
=3.33