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1、精选优质文档-倾情为你奉上小数加减法练习题 小数加减法注意事项:小数点要上下对齐,小数点对齐后,小数的整数部分和小数点后面的各分位数也自动对齐了。(注意书写整洁)一、1、口算。0.70.9= 0.80.6= 8.243.76= 4.13.8= 140.78= 14.60.34= 1.38.56= 0.80.55=40.04= 10.03= 30.53.05= 0.80.45=0.782.2= 50.08= 3.250.75= 100.1=1.50.5 10.9 2.30.6 0.90.81.90.9= 3.5- 2.4= 0.360.64 0.960.33.5+ 4.2= 6 -0.5= 2.
2、7-0.4= 1-0.3=0.8+ 0.7= 4.5-3= 7.8-1.1= 3.4-1.5=1.50.5 10.9 2.30.6 0.90.8 1.90.9= 3.5 -2.4= 0.360.64 0.960.3=2、计算下列各题8.656.31= 107.64= 13.68.46= 0.991.1=1.23+6.52= 5.32-0.93= 6.35-5.23= 1.23+5.69= 1.26+5.21= 0.96-0.23= 7.26-4.93= 2.16-0.23=9.28+7.32= 5.2-0.9= 2.65+9.32= 4.63+8.92=7.65-6.23= 8.28+4.75= 9.23+5.45= 6.23-4.53=6.52+2.63= 4.62+8.95= 7.24+6.21= 8.52+4.65=3、脱式计算,能简便的要简便简便计算。(注意书写整洁)45.55-(6.8215.55) 34.5217.8712.23 4.57+3.17+3.43+5.83 23.758.643.36 17.839.57.830.5 3.458.716.551.3 8.545.96 27.385.342.624.66 21.63(8.59.63) 3.61.283.09 4.32(1.262.34) 2.53.250.757.5专心-专注-专业