直接写出得数.
8.1÷0.03=+3=×=1.5×4=7.45+8.55=70-34=0.36+0.4=84÷7=19+24=0.4÷0.05=+=-=134-18=0×26=0.25÷0.01=1÷=×=39+26=-=÷=×20=0.3÷=×=0.25×0.6=×=-=2.5×0.4=1÷10%=4.8÷12%=÷10=
网友回答
解:8.1÷0.03=270,+3=3,×=,1.5×4=6,7.45+8.55=16,70-34=36,0.36+0.4=0.76,84÷7=12,19+24=43,0.4÷0.05=8,+=,-=,134-18=116,0×26=0,0.25÷0.01=25,1÷=6,×=,39+26=65,-=,÷=,×20=,0.3÷=0.25,×=,0.25×0.6=0.15,×=,-=,2.5×0.4=1,1÷10%=10,4.8÷12%=40,÷10=0.24.
解析分析:根据小数、整数、分数、百分数的加减乘除的计算方法进行计算即可.
点评:口算时,看清符号和数据,然后再进行计算即可.