1.10－5.4＝ 2.4÷20＝ 3.5×200＝ 4.1.5－0.06＝ 5.0.75÷15＝ 6.0.4×0.8＝ 7.4×0.25＝ 8.0.36＋1.54＝ 9.1.01×99＝ 10.420÷35＝ 11.25×12＝ 12.135÷0.5＝ 13.3/4 + 1/4 = 14.2 + 4/9 = 15.3 - 2/3 = 16.3/4 ...