3.8+0.03= 6.8÷0.1= 2.4×0.4×0.5= 100﹣0.99=12.5×0.8= 9.5+5.5÷5= 1.9+0.23= 8÷100=10÷12.5×8= 15.5﹣7= 0.8×2.5= 2÷0.5﹣2×0.5=
口算下面各题. 4.8÷1.2= 5.5÷1.1= 0.4×0.05= 1.6÷0.04= 0.25÷0.5= 0.8×1.25= 9.6÷0.6= 0.92÷0.4= 7.8÷1.3= 0.2×1.5=
3.47×1.5≈ (积保留一位小数) 0.68×4.3≈ (积保留两位小数)
0.7+0.9= 0.125×80= 8.24+3.76= 62.5×80= 4.1﹣3.8= 0.32÷16= 14+0.78= 6.4÷16= 14.6﹣0.34= 5÷10= 1.3+8.56= 0.7﹣0.55= 2.4×5= 1﹣0.03= 8.1÷3= 3.6÷12= 250×0.04= 30.5+3.05= 3.75×400= 0.78+2.2= 1.5×8= 6×1.5= 25×0.04= 9.6÷16= 5﹣0.08= 3.25+0.75= 10﹣0.1= 0.17×4= 7.4÷2= 0.16÷8= .
1.4×0.5= 7.5÷1.5= 0.48÷1.6= 0.51÷17= 1.2×0.4= 1.8﹣0.93= 0.67+0.43= 2.5×5﹣2.5= 5.4÷0.01= 0.6÷0.12= 3.2×2.5= 0.4×4÷0.4×4=
1.26×37= 65.86÷89= 0.126×3.7= 658.6÷89= .