题目内容

【题目】直接写出结果

568﹣198= 0.65÷1.3= 4.5×102= 5﹣0.25+0.75= 3.7×99+3.7=

0.4÷40%= 600÷25÷8= 1.2= = 5﹣5÷6=

30%+6.5= 5÷21×7= = = =

=

【答案】370,0.5,459,5.5,370,1,6,2,,6.8,,0.75,1.5,

【解析】

试题分析:(1)依据减法性质解答,

(3)(5)(16)运用乘法分配律解答,

(7)依据除法性质解答,

(13)运用加法交换律解答,

其它依据四则运算计算方法解答..

解:568﹣198=370; 0.65÷1.3=0.5; 4.5×102=459; 5﹣0.25+0.75=5.5; 3.7×99+3.7=370;

0.4÷40%=1; 600÷25÷8=6; 1.2=2; =; 5﹣5÷6=

30%+6.5=6.8; 5÷21×7==0.75; =1.5; =

=

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