×4= 16÷ = × = 0.8× =
0.25+ = ×2.4= ÷4= ÷4÷ =
÷2=
14÷=
+6÷30 =
1×=
0÷=
8.1÷0.03=
0.375×16=
×15= ×2= × = × =
÷ = ÷3= ÷5= ÷ =
÷5=
÷14=
÷7=
÷=
×3= ×= ×= ÷= (+)×15=
÷2= ÷= ÷= ×= 12÷(1-)=