0.5×0.4= | 1.4+0.72= | 0.8+1.3-0.8+1.3= | 400÷25÷8= |
0.33= | ÷ = | × ÷ × = | 1- + = |
=
840÷4= | 120×30= | = |
1.25×8.8= 15÷1%= 9.1-1.9= 7.2÷0.6= 9π=
0.25×8= ÷ = - = × = 0.52=
0.12= 43= 0.25×4= 0.23+0.32=
+ = 8×3.14= 0.42= 1-9÷19= 60%- =
2÷20%= 2.67+ = ×6÷ ×6=
- = + = + = 23= + =
+ = - = - = - = + =
①43=
②0.23=
③93=
④0.53=