24+11= 1.2+0.4= 1- =
×
= 1.8÷0.3= 2-
=
+
= 3.6÷0.4=
×16=
54÷18= 0.375+ = 0÷
=
8.1÷9= ×15=
×
=
1.25×8= 0.8×31= +
=
13.8-7= ÷9=
÷4=
0.5×0.6= ×12= 10-0.5=
0.25×0.8×4= 1- -
= 1-3÷8=