问题 解答题 口算题,轻松又愉快.6.2-1.5=0.01÷0.1=1.25×8=1-23+23=58÷4=12÷13=0.99×9+0.99=65万-39万=a÷1a=21.7÷7=400-298=19×2÷19= 答案 6.2-1.5=4.70.01÷0.1=0.11.25×8=101-23 +23=1 58÷4=53212÷13=320.99×9+0.99=9.965万-39万=26万a÷1a=a2 21.7÷7=3.1400-298=10219×2÷19=2故答案为:4.7,0.1,10,1,532,32,9.9,26万,a2,3.1,102,2.