题目内容
【题目】
直接写出下面各题的结果.
56+37= 80﹣16= 31.5+5= 12﹣1.1=
1.2×0.2= 2.87÷0.7= = =
30÷50= 25×8= = =
12× 1÷= 0×= ×2÷×2=
【答案】93,64,36.5,10.9,0.24,4.1,1,0.3,,06,200,,,8,1.25,0,4.
【解析】
试题分析: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.
解:56+37=93; 80﹣16=64; 31.5+5=36.5; 12﹣1.1=10.9;
1.2×0.2=0.24; 2.87÷0.7=4.1; =1; =0.3;
30÷50=0.6 25×8=200; =; =;
12×=8; 1÷=1.25; 0×=0; ×2÷×2=4.
故答案依次为:93,64,36.5,10.9,0.24,4.1,1,0.3,,06,200,,,8,1.25,0,4.
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