15.74减2.17减1.83加4.27简算

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15.74减2.17减1.83加4.27简算15.74减2.17减1.83加4.27简算15.74减2.17减1.83加4.27简算15.74-2.17-1.83+4.27=15.74-(2.17+1

15.74减2.17减1.83加4.27简算
15.74减2.17减1.83加4.27简算

15.74减2.17减1.83加4.27简算
15.74-2.17-1.83+4.27
=15.74-(2.17+1.83)+4.27
=15.74+(4.27-4)
=15.74+0.27
=16.01

15.74减2.17减1.83加4.27
=15.74+4.27-(2.17+1.83)
=20.01-4
=16.01