(人教版)小学四年级数学计算题专项综合训练.doc

（人教版）小学四年级数学计算题专项综合训练1直接写出得数。7.8+0.3=52.6=1.40.5=3.20.16=10.25=0.70.4=0.842.1=0.1258=3.52+0.4=0.35+1.9=2.41.5=43.6=0.45=0.254=3.20.8=14.412=5.10.3=0.20.13=0.680.4=1.25=8.14 =1.67 =0.1250 =0.364=8.44=5.60.8=0.150.5=0.364=3.8 + 2.2 =4.22 + 5.78 =10.6 + 4.28 =11.211=6.55.6 =7.682.5 =63.77 =1.47=70.6=2.30.4=1.50.01=2.54=45.7100=80.125=0.482=290.6=0.150.150.1=0.30.30.3=0.450.52=2.50.4=1.241.24=0.90.80.50.8=0.20.5=7.24=2用竖式计算。(最后一题保留两位小数)1.2418= 3.70.32= 0.191.53= 3.146.5=验算:5.117= 7.682.4= 107.26= 2.40.16= 验算:21.74.32= 2.070.13= 4.521.8= 4.692.2 3用你喜欢的方法计算。 8.55.677.55.67 1.6(1.8+1.95)2.5 12.51.682.321.30.40.05 1.20.81.25 47.031.048.96 8.216.41.79 0.254.70.4 5.80.16 + 4.20.161.623.2( 2019.2) 12.5(0.8+ 4) 0.7990.77.22.851.2 3.20.181.5 6.6+3.444、解下列方程。 (1) 5x5= 4.5 (2) 34x9x =7.5 (3) 4y24=16(4) 6y8=1.2 (5) 53.9=5.1 (6) 4X69=985、选择与填空(1) 如果a3.4”、“”或“=”。 560.956 0.780.10.780.1 2.10.912.1 6.81.26.8(6) 某日人民币对美元的汇价是100美元可兑换人民币761.97元。这样要兑换1万美元需要人民币( )元。 (7) 6米9厘米=( )米 25米=( ) 千米 3千米90米=( )千米 8厘米=( )米 4吨420千克=( )吨 65克=( ) 千克 5元8分=( )元 12厘米=( )米