3500÷40 =(3600-100)÷40 =90-2.5 =87.5
1080-3500÷25+34.6 =1080-35x100÷25+34.6 =1080-35x4+34.6 =1080-140+34.6 =940+34.6 =974.6
＝3500÷7÷2÷15 ＝500÷（2X15） ＝500÷30 ＝50/3
＝1080-35×4+34 ＝1080-140+34 ＝940+34 ＝974
+ 3,500.00 / 200.00 ------------- + 17.50
3500-3500÷250+346 =3500+346-14 =3846-14 =3832
(3500―25x125)÷25=( )脱式计算 (3500―25x125)÷25 =3500÷25-25×125÷25 =35×（100÷25）-25÷25×125 =35×4-125 =140-125 =15
计算 3500/14/5 =3500/（14*5） =3500/70 =50
解答 =3500-25×4×9 =3500-900 =2600
3600/4/25 =3600/（4x25） =3600/100 =36