四则运算1) 103÷73-159-57=1.4-159-57=-214.6(2) 83×91÷131+38= 58+3

四则运算
1) 103÷73-159-57
=1.4-159-57
=-214.6
(2) 83×91÷131+38
= 58+38
=96
(3) 197-46+67-13
=
(4) 38÷54×126-52
(5) 192+52×136÷66
(6) 123-47+159-16
(7) 164×23-126+74
(8) 117+21+17-19
(9) 7÷9×161+93
(10) 93×35-128+36
(11) 86×9×187×99
(12) 68÷83-14÷54
(13) 80÷93+15-17
(14) 51+20÷143-90
(15) 42+31×180+42
(16) 96÷82-173×25
(17) 42÷12×180-66
(18) 152-18÷10×19
(19) 16-69÷137×5
(20) 109÷9-51÷45
(21) 23+15+37÷18
(22) 52+95÷37÷12
(23) 88×51+188÷40
(24) 112×3-103×82
(25) 56-7-66-1
(26) 109×66-29×10
(27) 39+55-166-52
(28) 11÷55÷86÷51
(29) 71-42+50×92
(30) 177÷97-92÷4
(31) 151×9÷1+93
(32) 13×7÷56×18
(33) 99-21+70-22
(34) 14×5÷33-34
(35) 4÷90-125+67
(36) 24-48-170÷97
(37) 73÷98-106+66
(38) 76+53÷158+91
(39) 81-28÷69+27
(40) 50+20×83÷56
(41) 23÷78-40×54
(42) 118-58+73-17
(43) 161÷98÷64+75
(44) 198×12÷152-9
(45) 80×12÷54-64
(46) 198-85×85-1
(47) 128+33÷42+66
(48) 73×66+33-21
(49) 75×3÷28+24
(50) 71-51+199-83