口算.
|
(1)0.42 +0.24= |
(2)6.4 -4= |
|
(3)0.45 +0.34= |
(4)3.8 -0.8= |
口算.
|
(1)24 -2.4= |
(5)1 -0.82= |
口算.
|
(1)1.2 +2.8= |
(2)7.6 +4= |
|
(3)0.8 -0.3= |
(4)4.7 -0.5= |
口算.
|
(1)48 +52÷2= |
(2)3.62 +1.2= |
|
(3)4.8 -1.6= |
(4)5.02 ÷10= |
口算.
|
(1)4.2 +2.4= |
(2)10 -0.78= |
|
(3)3.25 +6.25= |
(4)5.23 ×100= |
口算.
|
(1)0.9 +10= |
(2)7.2 +8= |
|
(3)12.5 -5= |
(4)0.49 -0.29= |
口算.
|
(1)354 ×0= |
(2)120 -90÷3= |
|
(3)66 -6×10= |
(4)72 +28÷28= |