三年级下册乘除口算题

3.5×200＝ 1.5－0.06＝ 0.75÷15＝ 0.4×0.8＝ 4×0.25＝ 0.36＋1.54＝ 1.01×99＝ 420÷35＝ 25×12＝ 135÷0.5＝ 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10...