5﹣0.97=
2.5×60%=
=
×7= 0×= -= ×= 2.4÷=
1﹣÷ ×2.8= 5÷= 4×÷4×= +÷+=
1﹣1﹣ 99.9×8.99900 8.6÷9.6×
0.19+0.76= 8÷= 5-= 0.52÷0.4=
28×= 0.5= ÷= ×=