先观察,再计算.
|
(1)5 ×3+5= |
5 ×4= |
|
(2)7 ×3+3= |
8 ×3= |
|
(3)4 ×6+6= |
5 ×6= |
|
(4)2 ×5-2= |
2 ×4= |
|
(5)9 ×4+9= |
( )×( )= |
|
(6)7 ×5-7= |
( )×( )= |
|
(7)3 ×7+3= |
( )×( )= |
|
(8)6 ×1+6= |
( )×( )= |
(
)里最大能填几?|
(1)7 ×( )<23 |
(2)6 ×( )<59 |
|
(3)4 ×( )<35 |
(
)里最大能填几?|
(1)6 ×( )<27 |
(2)( )×8<30 |
|
(3)9 ×( )<75 |
(
)里最大能填几?|
(1)( )×4<14 |
(2)9 ×( )<57 |
|
(3)( )×6<25 |
在括号里填上适当的数.
|
(1)6 ×( )=30 |
(2)9 ×( )=63 |
|
(3)( )×7=49 |
在括号里填上适当的数.
|
(1)5 ×( )=40 |
(2)( )×4=36 |
|
(3)( )×( )=42 |