题目列表(包括答案和解析)
口算.
(1)4.8 +2.7= |
(2)6.1 -2.4= |
(3)1.3 +5.72= |
(4)10 -0.72= |
(5)3.36 +2.64= |
(6)7.52 -1.32= |
(7)7.3 +4.7+2.7= |
(8)13 -1.25-0.75= |
(9)4.96 +3.9+5.04= |
(10)7.36 -2.36+4.2= |
口算.
(1)4.8 +2.7= |
(2)6.1 -2.4= |
(3)1.3 +5.72= |
(4)10 -0.72= |
(5)3.36 +2.64= |
(6)7.52 -1.32= |
(7)7.3 +4.7+2.7= |
(8)13 -1.25-0.75= |
(9)4.96 +3.9+5.04= |
(10)7.36 -2.36+4.2= |
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= |
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= |
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= |
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