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= |
口算.
|
(1)5.6 +2.8= |
(2)8.1 -2.7= |
|
(3)1.5 ×0.6= |
(4)4.08 ÷0.8= |
|
(5)1.75 +3.8+0.25= |
(6)3.8 +4.6+5.4= |
|
(7)2.5 ×12= |
(8)1.25 ×16= |
|
(9)3.5 +2.5×3= |
(10)5.4 -4.8÷1.2= |
口算.
|
(1)5.6 +2.8= |
(2)8.1 -2.7= |
|
(3)1.5 ×0.6= |
(4)4.08 ÷0.8= |
|
(5)1.75 +3.8+0.25= |
(6)3.8 +4.6+5.4= |
|
(7)2.5 ×12= |
(8)1.25 ×16= |
|
(9)3.5 +2.5×3= |
(10)5.4 -4.8÷1.2= |
口算.
|
(1)1 -0.75= |
(2)2.3 ×5= |
(3)0.57 +0.43= |
|
(4)0.25 ×4= |
(5)1.36 +0.24= |
(6)2.01 ×4= |
|
(7)2.82 +0.8= |
(8)7.6 -6= |
(9)1.25 ×0.8= |
|
(10)0.4 ×0.25= |
(11)1.24 ×100= |
(12)0.09 ×0.6= |
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