直接写出下面各题的结果. 127+38= | 1.02-0.43= | 8.8÷0.2= | 2-1= |
×1= | 1÷7+= | 1-1×= | += |
÷= | 14÷= | 0.23×4= | 5×3.14= |
700×0.01%= | ×= | ÷25%×= | ×2÷×2= |
解: 1、27+38=165; | 1.02-0.43=0.59; | 8.8÷0.2=44; | 2-1=; |
×1=1; | 1÷7+=1; | 1-1×=; | +=1; |
÷=6; | 14÷=16; | 0.23×4=0.032; | 5×3.14=15.7; |
700×0.01%=0.07; | ×=; | ÷25%×=0.125; | ×2÷×2=4. |
1、65,0.59,44,,1,1,,1,6,16,0.032,15.7,0.07,,0.125,4.
依据四则运算计算方法,先算第二级运算,再算第一级运算,如果只含有同一级运算,按照从左到右顺序计算,有括号先算括号里面的解答.
点评:本题主要考查学生对于四则运算计算方法掌握,解答时保证计算的准确性.
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