3.3+1.67=
2.4×5=
6.3÷0.03=
+ =
× =
0.31÷3.1=
+0.375=
1÷ =
15﹣ ﹣ =
﹣ =
÷ =
15×0.4=
10÷2.5=
0.78÷1.3=
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
②
③
④
1÷0.25= += ×24= +=
﹣= 470×0.02= 10÷= 6×0=
1.5×80= ÷2= ×= ÷0.125=
﹣0.5= +3= ×= 0.8×=
0.23+177%= 2.5×40= 1÷= ×÷×=