问题 解答题 76+0.54=0.7-0.62=0.5×0.5=3.5÷10=21÷3=0.1-0.01=100×0.6=4.3×2= 答案 76+0.54=76.540.7-0.62=0.080.5×0.5=0.253.5÷10=0.3521÷3=70.1-0.01=0.09100×0.6=604.3×2=8.6