人教版四年級下冊數(shù)學(xué)《練習(xí)十八》教學(xué)課件.pptx
練習(xí)十八,義務(wù)教育人教版四年級下冊,小數(shù)的加法和減法,6,1.口算。,0.48.7,4.53.6,0.280.54,1.40.9,7.13.5,52.7,9.1,8.1,0.82,0.5,3.6,2.3,2.,27.07,17.21,22.27,12.41,43.29,33.43,5.47,9.86,3.計算下面各題。,7.0211.3820.96,12.451.960.8,19.9214.4