二年级数学递等式计算.docx

1、二年级数学递等式计算递等式计算9X4+67X3+5504X57+6X24+244-85844724-8-336+814-945+8X4806X8156X24+124-45728S416+244-8808X723+5 X 82X6+37903X98X73456-2X644+4X790544-6324-4+1540+2X642+404-5807X912-354-738+4X426+361436。4一712-3X27X4+1524+40 98(29+25) 4-95X (36-29)(83-35)于694- (25+19)16+244-818-9X2304-63(16+24)8(18-9) X230

2、-r (63)(26+16) 4-79X (4538)8X (69-60)(6+57) 4-918+72925+3X47+8X56X (158)28! (57-50)50-8X4(12+33) 4-936-2X3(36-2) X 38X4202X (83-74)36小(7268)47186100 (45+35)34+8X2(88-16) 4-8(2+7) X84X6+7(75-18) X742专(1+6)(6+2) X75X3+96X8+630- (19+2)(3+5) X676+724-86X (2+6)204-4+59X6+46X (5+4)(40-28) 4-69X8+30(66-50)

3、 4-2(26+28) J9364-9X638- (49-21)3X9X36X8+510+5X46+8X4(42+30) X28X7+3036i (2+4)9X8-213+4X68X4+6424-7X660-9X42X (2+5)72-r (3X3)(42-20) 4-29X8+5136+5X774- (10-3)564-8X7(75-18) X79X6+4244-4X86X2+77X (45-?5)19+9X6(19+2) 4-3(364-4) +27324-4+1629-4X2164-2X7424-6X777-46+3265-38+2679+19-56 wd(58-34) 4-884-27

4、+16=4+27-16(2+7) X86X (2+6)3X9X34X6+7204-4+56X8+5(75-18) X79X6+410+5X477-76+3261-38+2679+19-1618-36+2787-27+1630+ (23-29)73-23-493-(39-23)71- (25-24)30-(23-29)33- (39-23)99- (25-24)6X24-77X (454-5)19+9X6(19+2) 4-3(64) +2732-4+1629-4X2164-2X7424-6X755-46+2265-28+2658+18-5658-26+2584-25+16=4+25-1618-2

5、6+2585-25+1620+ (22-28)52-22-482-(28-22)51- (25-24)22+22+8482-(28-22)88+ (88-28)77-46+3263-38+2679+19-3676+728(100-63) X838- (49-21)42-r (1+6)6X (54-4)6+8X4(6+2) X7(40-28) 4-6(42+30) X26X84-6(66-50) -r2364- (2+4)38-36+2784-27+16=4+27-1673-23-493-(36-7)71- (25-24)30- (19+2)(26+28) -r-934+8X2(3+5) X63

6、6-9X6=(88-16) -r8SMB9X8-213+4X68X4+642 亏 7X660-9X42X (2+5)33-46+2263-28+2638+18-3638-26+2384-23+164+23-1672-T (3X3)(42-20) 4-29X8+5136+5X774- (10-3)564-8X7(75-18) X79X6+4244-4X881-r (1X9)(82-26) 4-74X84-51 I 36+7X763。(21-12)564-8X7(35-28) X79X6+42364-4X855+7X749-r (14-7)814-9X8(79-23) 87X64-4216-4X8

7、24+124-635-634-75 X 8-39(23+49) 848-184-38X7-34(52-45) X623+5X82X6+377X5+18324-4+2572 4- (24-16)(34+47) 4-956-2X690-3X954+184-635-214-78 X 8-39(33+49) -6848-244-38X7-55(39-30) X623+6X86X6+277X5+18124-4+75644- (24-16)(85-31)4-956-6X690-9X988- (46+2)(68-23) -r954+9X2(4+5) X6814-9X6=(79-23) 880- (19+42)(21+15) 4-964+8X2