用多种方法计算下面各题.
|
(1)12 ×4 |
12 ×4 |
12 ×4 |
12 ×4 |
|
=______ |
=______ |
=______ |
=______ |
|
=______ |
=______ |
=______ |
=______ |
|
(2)18 ×2 |
18 ×2 |
18 ×2 |
18 ×2 |
|
=______ |
=______ |
=______ |
=______ |
|
=______ |
=______ |
=______ |
=______ |
|
=______ |
=______ |
=______ |
=______ |
哪些数合适?
![]()
|
18 -( )>10 |
18 -( )>10 |
18 -( )>10 |
|
18 -( )>10 |
18 -( )>10 |
18 -( )>10 |
哪些数合适?
![]()
|
8 +( )<15 |
8 +( )<15 |
8 +( )<15 |
|
8 +( )<15 |
8 +( )<15 |
8 +( )<15 |
填空:
|
( )×( )=路程 |
速度 =( )÷( ) |
|
( )÷( )=时间 |