(81)285+(3000-372)÷36 =358
(82)796-5040÷(630÷7)=740
(83)3168-7828÷38+504 =-100656
(84)1406+735×9÷45 =1553
(85)14.6-(4.6+7.2)=14/5
(86)1-1/2-1/3-1/6=0
(87)3/10-7/30+4/10=7/15
(88)999×85+854×(6.5÷1.3)=89185
(89)1.5-0.05×(1.5-1.5)=3/2
(90)9/10-(1/6+3/5)=2/15
(91)4/3-(2/5+3/10)=19/30
(92)2/5+1/3+3/5=4/3
(93)20-(5.35+0.15)+6.3=104/5
(94)1/2-(3/4-3/8)=1/8
(95)7/8-5/12+1/6=5/8
(96)(174+209)×26- 9000 =958
(97)814-(278+322)÷15=774
(98)2/5+3/5+3/7-3/9=23/21
(99)5/6+5/12=5/4
(100)1-(8/13+5/13)=0