A.45 | B.20 | C.50 |
A.(0.96×4)×(2.5×4) | B.(0.96÷4)×(2.5×4) |
C.0.96×2+0.96×0.5 | D.1×2.5-0.04×2.5 |
A.4.06 | B.0.406 | C.40.6 |
A.4 | B.13.7 | C.0.44 | D.26 |
A.6.2 | B.17.64 | C.41.5 | D.44 |
A.1.3×8.9+1.3×1.1 | B.16.38+9.45+90.55 | C.87×1.25×8 |
A.1 | B.14 | C.100 | D.370 |
A.乘法交换律 | B.乘法结合律 | C.乘法分配律 |
A.乘法结合律 | B.除法结合律 | C.除法的运算性质 |