算算想想.
|
(1)4 +3= |
(2)14 +3= |
(3)34 +3= |
比一比,算一算.
|
(1)63 +30= |
(2)57 +40= |
|
(3)76+20= |
(4)67+10= |
进到整十数.
|
(1)29 +( )=30 |
(2)38 +( )=40 |
|
(3)67 +( )=70 |
(4)72 +( )=80 |
|
(5)81 +( )=90 |
(6)52 +( )=60 |
算算想想.
|
(1)4 +3= |
(2)14 +3= |
(3)34 +3= |
比一比,算一算.
|
(1)63 +30= |
(2)57 +40= |
|
(3)76+20= |
(4)67+10= |
进到整十数.
|
(1)29 +( )=30 |
(2)38 +( )=40 |
|
(3)67 +( )=70 |
(4)72 +( )=80 |
|
(5)81 +( )=90 |
(6)52 +( )=60 |