脱式1 998+1246+99892 1+2+3+4+.+99+1003 99+99*994 148*99-6525 606/13+1994/136 306*51/177 416*221/17*34/2088 4848/2029 4*200+0.4*50010 0.035*935+0.035+3*0.035+0.07*61*0.511 64*125/812 0.25*11+0.25

脱式1 998+1246+99892 1+2+3+4+.+99+1003 99+99*994 148*99-6525 606/13+1994/136 306*51/177 416*221/17*34/2088 4848/2029 4*200+0.4*50010 0.035*935+0.035+3*0.035+0.07*61*0.511 64*125/812 0.25*11+0.25
脱式
1 998+1246+9989
2 1+2+3+4+.+99+100
3 99+99*99
4 148*99-652
5 606/13+1994/13
6 306*51/17
7 416*221/17*34/208
8 4848/202
9 4*200+0.4*500
10 0.035*935+0.035+3*0.035+0.07*61*0.5
11 64*125/8
12 0.25*11+0.25

脱式1 998+1246+99892 1+2+3+4+.+99+1003 99+99*994 148*99-6525 606/13+1994/136 306*51/177 416*221/17*34/2088 4848/2029 4*200+0.4*50010 0.035*935+0.035+3*0.035+0.07*61*0.511 64*125/812 0.25*11+0.25
1 998+1246+9989
=1000-2+1246+10000-11
=11000+1233
=12233
2 1+2+3+4+.+99+100
=(1+100)*100/2=5050
3 99+99*99
=99(1+99)
=99*100
=9900
4 148*99-652
=148(100-1)-652
=14800-(148+652)
=14800-800
=14000
5 606/13+1994/13
=(606+1994)/13
=2600/13
=200
6 306*51/17
=306*3
=918
7 416*(221/17)*(34/208)
=416*(221*2/208)
=4*221
=884
8 4848/202
=48*101/202
=24
9 4*200+0.4*500
=4*(200+50)
=4*250
=1000
10 0.035*935+0.035+3*0.035+0.07*61*0.5
=0.035(935+1+3)+0.035*61
=0.035(939+61)
=0.035*1000
=35
11 64*125/8
=8*125
=1000
12 0.25*11+0.25
=0.25(11+1)
=12/4
=3

998+858-89

1 (1000-2)+(1200+46)+(10000-11)=1000+1200+10000+46-11-2=12233
2 (1+100)*100/2=101*50=5050
3 99*100-99+99=9900-99+99=9900
4 148*100-(148+652)=14800+800=14000
5 (606+1994)/13=2600/13=...

全部展开

1 (1000-2)+(1200+46)+(10000-11)=1000+1200+10000+46-11-2=12233
2 (1+100)*100/2=101*50=5050
3 99*100-99+99=9900-99+99=9900
4 148*100-(148+652)=14800+800=14000
5 (606+1994)/13=2600/13=200
6 306*(51/17)=306*3=918
7 (416/208)*(34/17)*221=2*2*221=884
8 (4040+808)/202=4040/202+808/202=24
9 4*200+4*50=4*(200+50)=1000
10 0.035*935+0.035+3*0.035+(0.07*0.5)*61=0.035*(935+1+3+61)=0.035*1000=35
11 125*(64/8)=125*8=1000
12 0.25*(11+1)=0.25*12=3

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