口算.
|
(1)54 ÷6÷3= |
2 ×4×5= |
72 ÷9÷8= |
|
(2)4 ×6÷3= |
36 ÷4×8= |
42 ÷7+14= |
口算.
|
(1)13 -6= |
(2)50 -30= |
(3)8 +92= |
|
(4)7 +7+7+7= |
(5)100m -10m=( )m |
|
|
(6)40cm -16cm=( )cm |
||
口算.
|
(1)24 +6= |
(2)24 -6= |
|
(3)24 ÷6= |
(4)30 ÷3= |