1.63+7.7=9.33 8-7.2=0.8 0.51÷1.7=0.3
5.2÷0.13=40 0.75+0.25×4=1.75 99×1.01=99.99
42×0.5=21 1.05×5=5.25 2.8×99+2.8=280
4.5×5÷4.5×5=25 故答案为:9.33,0.8,0.3,40,1.75,99.99,21,5.25,280,25.
1.63+7.7=9.33 8-7.2=0.8 0.51÷1.7=0.3
5.2÷0.13=40 0.75+0.25×4=1.75 99×1.01=99.99
42×0.5=21 1.05×5=5.25 2.8×99+2.8=280
4.5×5÷4.5×5=25 故答案为:9.33,0.8,0.3,40,1.75,99.99,21,5.25,280,25.