比一比,看谁算得又对又快.
|
(1)0.75 -0.42= |
(2)13.2 -8.1= |
(3)9.2 -8= |
比一比,看谁算得又对又快.
|
(1)9.5 -4.8= |
(2)4.8 +6.2= |
(3)6.3 +1.8= |
比一比,看谁算得又对又快.
|
(1)6.4 +3.2= |
(2)6.31 +7.5= |
(3)7.5 +2.1= |
口算.
|
(1)8 -4.5= |
(2)2.64 -1.3= |
(3)3.5 +3.5= |
口算.
|
(1)4 -3.15= |
(2)7.5 -2.6= |
(3)2.38 -1.27= |
口算.
|
(1)5.8 -2.7= |
(2)0.45 +0.32= |
(3)9.03 -8.01= |
口算.
|
(1)0.3 +0.14= |
(2)6.7 -3.4= |
(3)4.2 +3.8= |
口算.
|
(1)0.48 +0.12= |
(2)9.1 -8.2= |
|
(3)6 -3.51= |
(4)2.6 -0.1= |
口算.
|
(1)7.3 -6.2= |
(2)5 +4.2= |
|
(3)1.27 +0.32= |
(4)3.5 +10.4= |
口算.
|
(1)0.5 +0.2= |
(2)3.6 -2.8= |
|
(3)0.45 +0.54= |
(4)7.2 +1.9= |