1.(1+1/2)(1+1/3)(1+1/4)...(1+1/100)2.(1-1/2)(1-1/3)(1-1/4)...(1-1/100)3.8+2-8+24.25*4/25*45.7.26-(5.26-1.5)6.286+1987.314-2028.526+3019.223-9910.6...

口算天天练app特色1.口算天天练，数学思维提高快！2.这款软件适合幼儿园中班大班及一年级和二年级的小朋友使用。3.如果每天都进行适当的练习，相信您的孩子的数学及思维能力会大大提高。?4.选择口算天天练，不会让您失望的...

9/7*18=1425/7*100=2/5*81=458/9*16=1817×40=680,100-63=37,3.2+1.68=4.88,2.8×0.4=1.1214-7.4=6.6,1.92÷0.04=48,0.32×500=160,0.65+4.35=510-5.4=4.6,4÷20=0.2,3.5×200=700,...

1/2×3/530×1/32/3×123/5×5/62/5×1/31/2-1/61/7×1/525×4/55/6-1/21/2×1/52.8×0.4＝1.1214－7.4＝6.6,1.92÷0.04＝48,0.32×500＝160,0.65＋4.35＝...

3,45,6,,45,7,3,4,67,45,6,767,45,6,345,35,6,343,5,667,5,54345,5,5,33,2,455,63,2,2,2,424,5,23,4,234,234,2,42,4,242,4,,34,24,435,4255,667,345,25,,5346734,34,,5,75,5,...

同分母分数加减法口算题：5/8+1/6+3/8+5/66/7+（1/7+9/10）7/9+7/8+2/97/3-1/6-2/32/3+5/6-1/3+1/65/7+7/5-2/7-2/56/13-9/20+7/13+7/203/4-3/10-1/4+7/102-3...

17×40＝100－63＝3.2＋1.68＝2.8×0.4＝14－7.4＝1.92÷0.04＝0.32×500＝0.65＋4.35＝10－5.4＝4÷20＝3.5×200＝1.5－0.06＝0.75÷15＝0.4×0.8＝4×0.25＝0.36...

42.12/22=6/1143.100:150=2/344.0.4:0.5=4/545.3.4:0.34=1046.1/20:15=1/30047.3/4:3/5=5/448.3带:1/2:7=1/249.3:0.75=450.124:20=31/5=6.2...

口算天天练100题打印四年级上册如下：1、口算有路勤为径,遇题应当动脑筋。2、生活因为口算变得精彩。3、爱口算,学口算,用口算,快乐无极限。4、“数”山有路勤为径,“学”海无涯乐作舟。5、每天一口算，天天开心学。...

6,5.8,5.772,2.5,2.491,0.5,0.520.01,110,0.110，10000100,1000001000.9990.001，50690.811大于0.81大于0.809大于0.80811,705,30