23.8-4.96+6.2-5.05【简算,
问题描述:
23.8-4.96+6.2-5.05【简算,
答
23.8-4.96+6.2-5.05=(23.8+6.2)-(4.96+5.05)=40-10.01=40-10-0.01=30-0.01=29.99
23.8-4.96+6.2-5.05【简算,
23.8-4.96+6.2-5.05=(23.8+6.2)-(4.96+5.05)=40-10.01=40-10-0.01=30-0.01=29.99