口算．
|
(1)13 ×20= |
(2)39 ×10= |
(3)90 ×60= |
|
(4)60 ×25= |
(5)20 ×65= |
(6)70 ×12= |
|
(7)50 ×80= |
(8)16 ×50= |
口算．
|
(1)2 ×7+6= |
(2)4 ×8＋8= |
(3)9 ×8＋12= |
|
(4)4 ×6＋20 |
(5)12 ×5＋10= |
(6)8 ×8＋46= |
口算．
|
(1)13 ×3= |
(2)34 ×2= |
(3)24 ×3= |
|
(4)8 ×30= |
(5)16 ×20= |
(6)12 ×8= |