问题 解答题 直接写出得数.2009-29=7.35+1.7=0.42×30=9.3÷0.03=23×0.375=47÷35×35=2.8+0.2×20=(14-16)×36=67+17-314=6.3×99+6.3= 答案 2009-29=1980,7.35+1.7=9.05,0.42×30=12.6,9.3÷0.03=310,23×0.375=14,47÷35×35=47,2.8+0.2×20=6.8,(14-16)×36=3,67+17-314=1114,6.3×99+6.3=630.