运算定律与简便计算练习题
运算定律与简便计算练习题运算定律与简便计算练习题 用简便算法计算下面各题。 2214+638+286 2214+638+286((181+2564181+2564))+719+719 158+262+138 158+262+138 1212××2525 25 25××2424138138××2525××4 4(13(13××125)125)××(3(3××8)8) (12+80) (12+80)××5050 704 704××2525 2525××3232××125125 32 32××(25+125)(25+125)8888××125125102102××76765858××9898 178178××101101--178178 84 84××36+6436+64××84847575××99+7599+758383××102102--8383××2 2 98 98××199199 178 178××99+17899+1787979××42+7942+79××5858 7300 7300÷÷2525÷÷4 4 8100 8100÷÷4 4÷÷7575 16800 16800÷÷100100 30100 30100÷÷21002100 32000 32000÷÷400400 49700 49700÷÷700700 31 31××870+130870+130××3131 378+527+73 167+289+33 427+58-27378+527+73 167+289+33 427+58-27 58+39+42+61 123+86-23 867+234+133+166 287+135+123+16558+39+42+61 123+86-23 867+234+133+166 287+135+123+165 285+633+115+67 427-89+73 438+34+162 367+278-267+123285+633+115+67 427-89+73 438+34+162 367+278-267+123 258+232-158+168 258+143-158+157 742+129+158+171 136+57-36258+232-158+168 258+143-158+157 742+129+158+171 136+57-36 35+13+65+87 239+233-139+67 199+124+201+176 368+139-168+26135+13+65+87 239+233-139+67 199+124+201+176 368+139-168+261 218+39+61 218+138-38 286-23-77 218+523-23 136-29-61218+39+61 218+138-38 286-23-77 218+523-23 136-29-61 336-45-55 272-36-64 318+52+48 318+544-44 372-23-77336-45-55 272-36-64 318+52+48 318+544-44 372-23-77 18+333-33 772-56-44 786-38-48 418+143-43 236-66-3418+333-33 772-56-44 786-38-48 418+143-43 236-66-34 686-29-61 636-47-53 886-43-57 618+147-47 172-65-35686-29-61 636-47-53 886-43-57 618+147-47 172-65-35 101101××35353939××42+3942+39689-546-54689-546-548282××99+8299+82 125125××2525××32322828××10210282+114+18+58682+114+18+586 144144××90-8590-85××1441442525××32329999××32323838××101101 3232××99+3299+32125125××32322525××4646101101××56569999××2626 10221022--478478--422422987987-- ((287287++135135))478478--256256--144144672672--3636--6464 20002000--368368--13213218141814--378378--4224228989××9999++8989 155155++264264++3636++44442525×(×(2020++4 4))8888××225225++225225××1212 698698--291291--9 9568568-(-(6868++178178))561561--1919++5858 382382++165165++3535--8282155155++256256++4545--9898236+189+64236+189+64759-126-259759-126-259 2525××7979××4 4569-256-44569-256-44216+89+11216+89+115757××125125××8 8 318+155-55 518+88+12 118+123-23 318+41+59 576+(187+24) 576+(187-76) 843-(543-179) 347+(153-129) 947+(372-447) 771-(89+71) 576-(76+59) 576-272-(89+72) 756-375+(187+25) 146) 546+976-(71+76) 337-576-(176+72) 136-198 780-101 418+198 236-98 686-197 636-299 336-299 619+102 (153- 476+246+ 171-102 318+198 518+103 118+99 128+175÷5154+720÷60-123 26) 】 750-65×11) ×70【200- (95+60) 】 ×80 ×3539×42+39×58 82×99+82 ×25×324.65+3.78+5.35 ÷【225 -(74+ 231-154) × (78-50) 689-546-54 6400÷25÷4 28×102 四年级下册整数和小数的简便运算练习题 100 (( 101 125+98-125 125 82+114+18+586144×90-85×14425×32 11000÷8÷12599×32(320-136) ×8-152 4.7+2.82+3.3+5.1838×101 5.48-2.46+4.5213.56+(10-2.32) 7.98-6.45+5.4322.53-(13.53