口算.
|
(1)18 ÷6= |
(2)19 +7= |
(3)36 ÷6= |
(4)72 -9= |
口算.
|
(1)75 +9= |
25 +6= |
37 -20= |
5 ×2= |
|
(2)3 ÷3= |
8 +24= |
16 +4= |
30 ÷5= |
口算.
|
(1)60 +30= |
6 +51= |
49 -5= |
72 +8= |
|
(2)24 -8= |
12 ÷4= |
61 -40= |
7 +43= |
速算巧算
|
(1)57 -40= |
(3)29 +38= |
|
(2)8 +22= |
(4)83 -54= |