×60= × = 0.36× = 15:20=
÷2= 6÷ = 0.56÷ = :0.75=
=
1÷= 2×= ÷= 3.6×=
×= ÷4= ×= 12×=
20÷20%= : = ÷10= ÷ ×10=
2×0.5= 4×6.5= 8.5+14.51= 10-2.03=
5.2-1.9= 3.6÷4= 0.28÷0.7= 1÷ =
-= 20÷= 0.77+0.23= +2-+2=
0.3÷0.5= ×7.2= 4000÷80= 1.5×4+6=