| 2.4×5= |  ：0.5= | 4÷﹣ ÷4= |  +13×= |
| 0.32= |  × ÷×= |  ﹣ += | 8÷2.5÷4= |
﹣4=
﹣（
+
）=
=×
=  ÷ = |  × = |  + = | 2﹣﹣ = |
| ÷4= | 54× = | 0.42= |  ×0÷= |
= 
-
= 6÷
= (
+
)×21
+
=| 直接写出得数 9÷  = | 12× = |  + = |  ÷ = |
（1.125﹣ ）÷0.75= | 3.6÷0.06= |  × = |  ﹣ = |
 × = | 0.13+ +0.87= | | |
| 1﹣40%= | 3.14×8= |  ÷ = |  ÷ = |
2.4× = |  ×5= |  + = |  × = |
1﹣ = |  ﹣ = |  ÷ = | 10÷0.01= |
| 7﹣3= |  ÷21= | 0÷ = | 1÷= |
÷195= ；（2）195÷195= 
+
+
+…+
+
= ． 6× = |  ÷7= | 1.25×8= | 4×1 = | 1 ÷1= |
0× = |  ÷5= | 5× = |  ﹣= |  +0.5= |
 ×6= |  × = |  ÷5= |  ﹣ = |
 + = |  × = | 3÷ = |  + × ． |
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