15.74减2.17减1.83加4.27简算
问题描述:
15.74减2.17减1.83加4.27简算
答
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