50.2×2.9= 17.1÷0.38= 2.56×0.98≈ 3.25÷0.96≈
8.5÷0.18.5×10 7.377.37
10÷1.2510 A×0.5A÷0.5(A>0)
5.08×0.45= 5.87÷2.9≈(得数保留两位小数)
6.65÷3.3=(得数用循环小数毫示) *5.4÷0.12=
1.21÷1.11.21 4.25×1.14.25 5.9÷7.80.59÷7.8
0.9×1.959×0.195 1.8×101.8÷0.1 1×0.950.95
1.68×0.65= 2.49×7.2=
0.63÷0.21= 3.14÷0.82≈ (保留两位小数)
0.84×0.45= 41.9÷0.75≈(精确到百分位)
人民币外汇牌价(部分)
1美元兑换7.15元人民币;1欧元兑换7.86元人民币
1英镑兑换9.07元人民币;1日元兑换0.05元人民币
687+95= 0.46+4.9=
0.5×2.4= 0.84÷0.7= 2.6× =
1.25× ×8=
96-69= 0.72+2.8= 0.125×0.8= 0.32÷0.1=
4× ÷4× = 7÷ = 1- =
403×19= -80%= ( - )×12=