题目内容
口算.
| 35.7+14.8= | 24.8-14.5= | 17-14.5= | 287+138= | 657-154= |
| 3.65×10= | 9.05÷10= | 30-19.2= | 25÷10-25÷10= | 4.2-4.2×0= |
| 34.5×10+55= | 0÷25+2.5= | 8.65-2.3-1.65= | 0.01×100+100= |
| 35.7+14.8=50.5, | 24.8-14.5=10.3, | 17-14.5=2.5, | 287+138=425, | 657-154=503, |
| 3.65×10=36.5, | 9.05÷10=0.905, | 30-19.2=10.8, | 25÷10-25÷10=0, | 4.2-4.2×0=4.2, |
| 34.5×10+55=400, | 0÷25+2.5=2.5, | 8.65-2.3-1.65=4.7, | 0.01×100+100=101. |
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