问题 解答题 心灵脑快. 6.3÷0.9=0.006×100=2004-299=11-58=26×0.25×4=7×17÷7×17=5÷7+5=31×197≈0.56×18=29+29+…+29=18个 答案 6.3÷0.9=7,0.006×100=0.6,2004-299=1705,11-58=1038,26×0.25×4=26,7×17÷7×17=149,5÷7+5=557,31×197≈6000,0.56×18=0.07,29+29+…+29=18个4.