题目内容
口算．
(1)5.5
÷5=(2)0.6
×0.9=(3)0.81
÷9=(4)7.5
÷5=
答案：1.1;0.54;0.09;1.5
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口算．
|
(1)5 ×5＝ |
(2)7 ×3＝ |
|
(3)10 ÷2＝ |
(4)16 ÷4＝ |
| 口算： 2.5×0.7×0.8= | （2.5+0.9）×0.4= | 42÷0.6= | 5.6×1.01= |
| 3.9+1.01= | 0.42= | 4.8t-0.2t-2t= | （5.5-5.5）÷3.3= |
| 1.52= | 3.3-0.7-0.3= |
| 口算 1.2÷0.2= | 2.5×4= | 0.25+4= | 1.87×0= |
| 3.5+0.5= | 1.2÷0.4= | 3.6÷4= | 0÷1.25= |
| 0.12×6= | 0.64×0.03= | 5.8+4.2-6.5= | 7.8÷3= |
| 0.125×8= | 2.8÷1.4= | 0.25÷0.5= | 7.21÷7= |
| 0.35÷10= | 3.6÷3= | 6.3÷0.9= | 0.54÷6= |
| 0.3×0.1= | 1.3÷2= | 0.4÷8=2 | 7.3÷3= |
| 0.51÷0.3= | 15÷0.01= | 5÷10= | 0.7×12= |
| 0.2×0.5= | 3.8×0.1= | 0.2×0.2= | 0.04×0.4= |
| 12.4+7.6= | 8×0.5= | 0.72÷36= | 9×2.5+2.5= |
| 1.8÷3= | 2.3÷2= | 6.5÷5= | 2.14÷2= |
| 2.5×4= | 2.7×2= | 0.5×7= | 4.8+3.6+5.2= |
| 3.4÷1.7= | 2.5+0.2= | 4.5÷5= | 5+2.8= |
| 0.8×0.3= | 13.5×2×0= | 5.25÷5= | 4×2.2= |
| 0.12×0.5= | 1.8×5= | 6.24÷2= | 2.83-1.43= |
| 1.2+2.9= | 3.8÷2= | 1.32×3= | 4.6×7= |