四年级下学期混合运算

(1) 55+686+798÷215=
(2) 633×280÷92-541=
(3) 809-335×591÷851=
(4) 981×123÷463÷738=
(5) 303-584-574÷768=
(6) 106+609×922÷925=
(7) 243÷214÷629×758=
(8) 595÷597-871-115=
(9) 695÷450÷728÷840=
(10) 798÷278-173×386=
(11) 332-260×193÷507=
(12) 22+428-395+194=
(13) 644+561+918÷956=
(14) 761×680-103×565=
(15) 242+506-676+379=
(16) 35+759-57×387=
(17) 58×702+309÷157=
(18) 522×731÷494+625=
(19) 622-487+995-156=
(20) 912-261×382-601=
(21) 328-159+542×950=
(22) 110÷836÷637÷227=
(23) 636+234+562÷116=
(24) 456-78÷411-249=
(25) 372×698+780+395=
(26) 52÷899-313÷516=
(27) 934+272÷273×44=
(28) 927×859+670×228=
(29) 592×616÷684-999=
(30) 379+334÷792-161=
(31) 681+634-532+217=
(32) 128×781+201+939=
(33) 896-687÷408÷811=
(34) 627+38-866-306=
(35) 527+855+255÷419=
(36) 317+491÷518-310=
(37) 694÷198×602+359=
(38) 826+413÷815÷