《2023年四年級(jí)數(shù)學(xué)下冊(cè)6小數(shù)的加法和減法練習(xí)十七配套課件新人教版》由會(huì)員分享,可在線閱讀,更多相關(guān)《2023年四年級(jí)數(shù)學(xué)下冊(cè)6小數(shù)的加法和減法練習(xí)十七配套課件新人教版(13頁(yè)珍藏版)》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。
1、(選自教材,P71-P72,練習(xí)十七),練習(xí)十七,1.,口算,2.5+0.9,7.8+1.6,0.39+0.15,1.2-0.5,4.7-2.8,0.96-0.33,=3.4,=9.4,=0.54,=0.7,=1.9,=0.63,4.1 2,3.6 4,+0.4 8,3.64+0.48=,21.56+6.74=,4.12,28.3,3.6 4,4.1 2,0.4 8,驗(yàn)算:,2 8.3 0,2 1.5 6,+6.7 4,2 1.5 6,2 8.3,6.7 4,驗(yàn)算:,2.,計(jì)算下面各題并驗(yàn)算。,1 7.0 4,7.8 5,+9.1 9,7.85+9.19=,41.2-15.6=,17.04,2
2、5.6,7.8 5,1 7.0 4,9.1 9,驗(yàn)算:,4 1.2,2 5.6,+1 5.6,2 5.6,4 1.2,1 5.6,驗(yàn)算:,8.2 4,4.6 8,+3.5 6,8.24-3.56=,11.65-7.39=,4.68,4.26,4.6 8,8.2 4,3.5 6,驗(yàn)算:,1 1.6 5,4.2 6,+7.3 9,4.2 6,1 1.6 5,7.3 9,驗(yàn)算:,3.,0.95-0.35=0.6,(,千克,),杯里的水有多少千克?,答:杯里的水有,0.6,千克。,項(xiàng) 目,電話費(fèi),寬帶費(fèi),合 計(jì),4,月,83.54,元,80.00,元,5,月,79.26,元,80.00,元,總 計(jì),4
3、.,小麗家兩個(gè)月的電話費(fèi)和寬帶費(fèi)如下表,把表填寫完整。,163.54,元,159.26,元,162.8,元,160,元,322.8,元,5.,1.37,9.8,14.5,+,8.95,6.28,5.74,=,10.32,16.08,20.24,6.52,62,0.7,-,3.44,17.7,0.25,=,3.08,44.3,0.45,6.,下面的計(jì)算正確嗎?把錯(cuò)誤的改正確。,1 6.2 9,12.5,+3.7 9,10.0,23.4,-13.4,3.7 4,5.0 0,-1.2 6,4.1 6,7.1 6,-3,7.,用小數(shù)計(jì)算下面各題。,5,元,6,角,2,分,+3,元零,9,分,1t30k
4、g+980kg,4m35cm+5m70cm,10kg-4kg800g,4km800m-3km50m,6km-2km860m,8.71,元,2.01t,10.05m,5.2kg,1.75km,3.14km,8.,+,75.8+45.5=121.3,(元),+,75.8+58=133.8,(元),+,92.5+45.5=138,(元),+,92.5+58=150.5,(元),9.,一些女子田徑項(xiàng)目的中國(guó)紀(jì)錄和世界紀(jì)錄(截至,2021,年,8,月)如下表,它們各相差多少?,2.09-1.97=0.12(m),7.52-7.01=0.51(m),22.63-21.76=0.87(m),76.80-71
5、.68=5.12(m),72.28-6,7,.9,8,=,4,.3(m),10.79-10.49=0.3(秒),項(xiàng)目,跳高,跳遠(yuǎn),鉛球,鐵餅,標(biāo)槍,100m,中國(guó)紀(jì)錄,1.97m,7.01m,21.76m,71.68m,67.98m,10.79,秒,世界紀(jì)錄,2.09m,7.52m,22.63m,76.80m,72.28m,10.49,秒,10.,找規(guī)律填數(shù)。,(,1,),0.2,0.4,0.6,0.8,,,_,,,_,。,(,2,),1.11,1.16,1.21,1.26,,,_,,,_,。,(,3,),4.363,4.366,4.369,4.372,,,_,,,_,。,(,4,),7.897,7.892,7.887,7.882,,,_,,,_,。,1.0,1.2,1.31,1.36,4.375,4.378,7.877,7.872,