2.79÷3.1+1.1
27×0.32÷0.4
45-3.2×45÷3.6
10.5×4.8=
7.49×1.2= 验算
0.17×0.71=(得数保留两位小数)
1.78×0.24=(精确到百分数)
0.28÷7=
9.5÷5=
0.7×0.3=
0.24×5=
2.3×2=
5÷0.01=
8.04÷0.2=
0.4×0.3÷0.4×0.3=
0.32×12.5×0.25
12×0.95+1.2×0.5
5.2÷1.3×0.4
2.4×1.2÷2.4×1.2
1.5×[1÷(2.1-2.09)]
9.9×2.7
个十和个一。
写作:,读作:。
验算: