100×0.6=    11.5+9=       4.12÷4=       10-0.96=

0.1×0.8=     0.42÷6=      0.8×0.25=      0÷7.3=

0.81÷0.9=    3.1÷3.1=      4.6÷0.02=     5.5×0.2=