51×25%-27×
24×(+-)
1.25×16
14×(1-)÷
①58+399=
②1122÷11=
③0.1÷=
④×54=
⑤0.24×5=
⑥1÷0.375=
⑦-=
⑧20÷10%=
⑨23+12=
⑩12×()=
⑪0.25×4÷0.25×4=
⑫+÷+=
4.5÷× 37.36﹣6.37﹣13.63 ×(+)
(-+)÷ ×+87.5%× ×[-(-)]
1.05×(3.7﹣0.7)÷6.3 73×40%+27× -(+)×50%
①+++
②(-+)×24
③1.5×+8.5×
④4×0.8×2.5×12.5
⑤25××40%×
⑥÷[(+)×]
①(+-)÷
②12-(1+2)
③5÷[(+)×]
④2.5×3.2×0.125
⑤0.125×+×8.25+12.5%
⑥÷﹣
1800÷45= 6.4+9.6= 0.875﹣= 12×98≈
56×= 1.6×125%= ×24÷= 9+11+13+……+41=