口算下面各题
|
(1)30 ×15= |
(2)2 ×37= |
|
(3)13 ×50= |
(4)900 ×5= |
口算下面各题
|
(1)20 ×80= |
(2)120 ×4= |
|
(3)304 ×3= |
(4)200 ×3= |
口算下面各题
|
(1)4 ×800= |
(2)50 ×60= |
|
(3)340 ×10= |
(4)204 ×3= |
口算下面各题
|
(1)180 ×3= |
(2)113 ×3= |
|
(3)7 ×90= |
(4)150 ×2= |
口算下面各题
|
(1)290 -90= |
(2)10 ×24= |
|
(3)300 +100= |
(4)301 ×1= |
口算下面各题
|
(1)420 +80= |
(2)70 ×40= |
|
(3)340 ×2= |
(4)200 ×13= |
口算下面各题
|
(1)20 ×30= |
(2)130 ×3= |
|
(3)111 ×9= |
(4)12 ×40= |