A.10个1 | B.10个0.1 | C.10个0.01 |
A.9.45 | B.12.05 | C.22.55 |
A.3.8+4.6=4.6+3.8 |
B.5.9+6.3+3.7=5.9+(6.3+3.7) |
C.3.5+2=3+0.5+2 |
A.327-(2.63+0.37) | B.327-0.37-2.63 |
A.66.2 | B.142.2 | C.10.8 |
A.1.1 | B.1.2 | C.1.6 |
A.交换律 | B.结合律 | C.分配律 |
A.10个1 | B.10个0.1 | C.10个0.01 | D.1个0.1 |
A.11 | B.12 | C.13 |