题目内容
7.5+2.5= | 5.2÷1.3= | 1.8×0.5= | 4.5÷0.1= |
+= | -= | ×= | (+)×10= |
1÷+= | 1+2÷3= | 1÷×= | ÷= |
7.5+2.5=10, | 5.2÷1.3=4, | 1.8×0.5=0.9, | 4.5÷0.1=45, |
+=, | -=, | ×=, | (+)×10=, |
1÷+=7, | 1+2÷3=1, | 1÷×=, | ÷=. |
分析:(+)×10,先算括号里面的加法,再算括号外面的乘法;
1÷+、1+2÷3,先算除法,再算加法;
1÷×,从左往右按顺序计算;
其他算式按照整数、分数、小数四则运算的方法计算.
点评:此题考查看算式直接写得数,根据数据的特点,快速准确的算出得数即可.
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