1.口算下列各题5+ = 72-=-= +16 =12- =24-=+ =4- =+10= +4= 14- =9-=+9=+ =+12= +32=+ =+ =+16=+16 =+...
北师版小学数学五年级下册口算题卡第一单元_____月______日星期______答对____题答错____题计算下面各题:5+310=72-51238-38=38+16=12-...