问题 填空题 计算:12+12=______;1-13=______;23×34=______;1÷35=______;2+213=______;0.5-13=______;4×14=______;0÷423=______. 答案 12+12=11-13=23;23×34=12;1÷35=53;2+213=413;0.5-13=16;4×14=1;0÷423=0.故答案为:1,23,12,53,413,16,1,0.