45.6*6.7+4.56*31+0.456*20=?
45.6*6.7+4.56*31+0.456*20=?
45.6×6.7+4.56×31+0.456×20用简便方法=几啊
45.6乘6.7加4.56乘31加0.456乘20的简便算法是什么
45.6*6.7+4.56*31+0.46*20的简便运算
45.6×6.7+4.56×33的简便远算怎么算
4.56/1.23x7.89/0.456/78.9x123
用简便方法计算.4.56×0.27+4.56×0.63+0.456
4.56元=45.6角=456分(判断题)
1.23×45.6×0.789÷4.56÷7.89÷0.123=(简便运算)
1.23*45.6*0.789/4.56/7.89/0.123
4.56乘9.9+0.456的简便计算方法是什么、
1.23*(45.6/0.123)/4.56怎样用简便方法计算?