28.26cm2。0.0314dm2。3.14m2。连:1.(1)78.5 (2).50.24 (3)28.84
2.3337.1 3.78.5 4.78.5 5.1314
1.12.56 12.56 3.2.3.44 4.113.04 6.0.4 7.87.92 10.637 12.1.2.86 2.37.68
试一试:28.26cm2。0.0314dm2。3.14m2。连:1.(1)78.5 (2).50.24 (3)28.84
2.3337.1 3.78.5 4.78.5 5.1314
1.12.56 12.56 3.2.3.44 4.113.04 6.0.4 7.87.92 10.637 12.1.2.86 2.37.68
咦,我好像有这练习册,对,就是我6年级是做的
23+23=