题目内容
| 口算题,轻松又愉快. 251+149= | 72÷0.8= | 10-0.91= | 1.5×0.5= | ||||||||
| 10÷0.2= | 560÷16÷5= | 0.25-
| 4×25-25= | ||||||||
| 0.333×3≈ | 4.78-2.11-0.89= | 1-
| 1÷
|
| 251+149=400, | 72÷0.8=90, | 10-0.91=9.09, | 1.5×0.5=0.75, | ||||||||||||
| 10÷0.2=50, | 560÷16÷5=7, | 0.25-
| 4×25-25=75, | ||||||||||||
| 0.333×3≈1, | 4.78-2.11-0.89=1.78, | 1-
| 1÷
|
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