×× +-- ××
-(-) -) -+-
1.05×2= 0.13×4= 0.27×0.3= 1.05×2= 7.5×40=
2.5×0.2= 100÷80= 9.9-0.3= 0.48÷1.2= 3÷0.05=
4.8×100=
2.5×4=
0.1×0.01=
6.92×1000=
500×0.2=
0.3×0.9=
5.6+0.2×5=
1.25×0.8=
①2.4×0.7÷2.4×0.7
②7.8×99
③13.56-3.56÷8
④12.4÷1.25÷0.8
0.56÷0.80.56
0.98÷0.350.98
2.14÷12.14
4.56÷14.56
1.8÷1.21.8
22.5÷1.522.5
(只)
6:==%=(填小数)