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0.42÷7等于多少怎么算视频?(0.42÷(0.5x0.7)简便计算)

0.42÷7等于多少怎么算视频?(0.42÷(0.5x0.7)简便计算)

0.42÷(0.5x0.7)简便计算

其实没什么简便数法,先数括号内的,得0.35, 再算0.42/0.35=42/35=6/5=1.2. 按一般运算规律去算就可以了啊。

直接写出得数. 0.42÷7= 2÷5= 1÷0.2= 7÷8= 8.4÷2.1= 0.69÷1= 1.26÷0.6= 0.5÷0.2= 0.9×100÷100

0.42÷ 2÷5=0.4; 1÷0.2=5; 7÷8=0.875;

8.4÷2.1=4; 0.69÷1=0.69; 1.26÷0.6=2.1; 0.5÷0.2=2.5;

0.9×100÷1000=0.09; 12.4-(2.4+3.25)=6.75; 0.01÷0.001×0.1=1; 0.5×0.1÷0.5×0.1=0.01;

14.21除以7怎么算

14.21/7=2.03

希望能帮助你,如果不懂可以追问,弄懂请及时采纳。谢谢

0.9×6= 0.42÷7= 7×0.08= 1÷0.2= 8.4÷2.1= 4×0.25= 60×0.08= 1.26÷O.6= 0.9×100

0.9×6=5.4 0.42÷7=0.06

7×0.08=0.56 1÷0.2=5

8.4÷2.1=4 4×0.25=1

60×0.08=4.8 1.26÷O.6=2.1

0.9×100÷1000=0.09 0.1÷0.001×0.1=10

0.5×0.1÷0.5×0.1=0.01