÷ = ×8= × = ÷14= ÷ =
× = × = 0× = ÷ =
1÷=
1÷×7=
0.8×50%=
÷=
2-=
16÷50%=
1-+=
25%×4=
70×8=
700×8=
450÷5=
4500÷5=