+= ×= -= ÷=
0.18×= 4.7+0.38= 3.2÷0.1= (10﹣)×0=
204﹣78= 120×7= 960÷6=
3.8﹣2.98= + = ÷ =
37+58= 810-540= 19×40= 910÷70= 68-0.8=
4÷24= 8.2÷0.1= 12×25%= + = 803-204≈
× = ÷ = 4.48+5.52= 2.02-1.43= 0.08×0.25=
15.9÷3= 1- = - = 0.2 2= 3.2÷0.01=
1.5×1= 910÷70= 2.2﹣1.9= 6÷7= 435+199=
+= -= ÷= 20×= ×=
1÷0.25= += ×24= +=
﹣= 470×0.02= 10÷= 6×0=
1.5×80= ÷2= ×= ÷0.125=