计算.
|
(1)( -4)+(-5)= |
(2)500 -800= |
|
(3)( -10)-(-9)= |
(4)0 -5= |
用竖式计算.
|
(1)3.46 +29.69 |
(2)12 -7.86 |
用竖式计算.
|
(1)4.84 +1.92 |
(2)6.81 -2.821 |
用竖式计算.
|
(1)10.8 +5.08 |
(2)30.6 -15.25 |
计算.
|
(1)( -4)+(-5)= |
(2)500 -800= |
|
(3)( -10)-(-9)= |
(4)0 -5= |
用竖式计算.
|
(1)3.46 +29.69 |
(2)12 -7.86 |
用竖式计算.
|
(1)4.84 +1.92 |
(2)6.81 -2.821 |
用竖式计算.
|
(1)10.8 +5.08 |
(2)30.6 -15.25 |