The strategy of mixed fraction operation in the sixth grade of Mathematics The easiest and infallible way Do the math

The strategy of mixed fraction operation in the sixth grade of Mathematics The easiest and infallible way Do the math

Addition and subtraction: all points
Multiply: approximately
Divide by: multiply by reciprocal
Ratio size: for example, the ratio of a / B and C / D is calculated as AD, bc.ad If it is large, then a / B is large; if BC is large, then C / D is large. If it is equal, then it is equal