199+49= | 10﹣0.01= | 5+1.4+1.6= | 2.5×40= |
× = | 24÷ = | + = | ÷2÷ = |
A.9 个 | B.10个 | C.无数个. |
13.4﹣8=________ | 5.6+4=________ | 23+4.7=________ | 10﹣2.3=________ |
10﹣2.3=________ | 13.4﹣8=________ | 7.5×4=________ | 2.3×4×0=________ |
0.001×40=________ | 3.05×5=________ | 2.3×4×0=________ | 0.6﹣0.23=________ |
0.34+0.45=________ | 0.06×0.7=________ | 0.05×1.6=________ | 0.6﹣0.23=________ |