题目列表(包括答案和解析)
口算.
|
(1)4.8 +5.7= |
(2)4.36 +1.64= |
|
(3)9 -2.5= |
(4)10 -0.36= |
|
(5)2.39 +1.25= |
(6)5.38 -4.28= |
|
(7)0.36 +0.47= |
(8)0.91 -0.38= |
|
(9)2.4 +3.6-1.2= |
(10)4.5 -1.2+0.4= |
|
(11)7.25 +1.73+2.75= |
(12)10 -0.15-0.85= |
口算.
|
(1)4.8 +5.7= |
(2)4.36 +1.64= |
|
(3)9 -2.5= |
(4)10 -0.36= |
|
(5)2.39 +1.25= |
(6)5.38 -4.28= |
|
(7)0.36 +0.47= |
(8)0.91 -0.38= |
|
(9)2.4 +3.6-1.2= |
(10)4.5 -1.2+0.4= |
|
(11)7.25 +1.73+2.75= |
(12)10 -0.15-0.85= |
直接写出得数.
|
(1)0.37 +0.45= |
(2)0.63 -0.47= |
|
(3)0.83 ×0.2= |
(4)0.93 ÷3.1= |
|
(5)2.48 ÷0.8= |
(6)15 -3.25= |
|
(7)1.73 +0.26+8.27= |
(8)2.5 ×0.79×4= |
|
(9)4.53 -1.53-2.5= |
(10)(6.32 +3.68)×0.2= |
直接写出得数.
|
(1)0.37 +0.45= |
(2)0.63 -0.47= |
|
(3)0.83 ×0.2= |
(4)0.93 ÷3.1= |
|
(5)2.48 ÷0.8= |
(6)15 -3.25= |
|
(7)1.73 +0.26+8.27= |
(8)2.5 ×0.79×4= |
|
(9)4.53 -1.53-2.5= |
(10)(6.32 +3.68)×0.2= |
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