四年级数学下册简便运算专题练习

1、简单地订正练习题1158 262 138375 219 381 2255001-247-1021-232181 2564 2719378 44 114 242 222276 228 353 219(375 1034) (966 125 )(2130 783 270) 101799 999 9999 999997755-(2187 755 )2214 638 2863065-738-1065899 3442357-183-317-3572365-1086-214497-299 2370 1995 3999 4981883-398 1225 7524138254 (13125)(38) (12 2

2、4 80)50简单地订正练习题270425 2532125 8812510276 5898 178101-1788436 6484 7599 275 83102-83298199 12318-1233 8512317899 178 7942 79 7957 73002548100475 32000400 2150012549700700 480025简单地订正练习题32356-(1356-721 ) 1235-(1780-1665 ) 7527192531870 13310 4(2565 2528 )(3006 ) x 1225 x (48 ) 125 x (358 ) (1324 ) x 8

3、84x101 504x25 78x102 25x20499x64 99x16 638x99 999x9999 x 131325199 x 2532 x 1614 x 3278 x 478 x 378 x 3125X32X8 25X32X125 88X125 72X125简单地订正练习题436002548100475 30001258 1250255200-624-762100-728-772273-73-27847-527-273278 463 22 37 732 580 268 1034 102214-(86 14) 787-(87-29) 425 14 186365-(65118 ) 45

4、5-(155230 ) 576-28585825-657 57 690-177 77 755-287 87871-299 157-99 363-199 968-599简单地订正练习题5600-601520 x 420 x 4736-35x 2025 x 425 x 498-18x 52556 x 856x 8280-80412 x 612 x 6175-752525 x 825 x 880-20x 26036 x 936 x 936-366-625 x8(25 x8) 10045-1004515 x 9731001-100148 x 99110008-10008595 x 281021-102

5、16535 x 132575-25754036020-1013 24X8 672-36 64 324-68 32 100-36 64简单地订正练习题62639 6126 3569-569 9955 5578101-785276 4776 7613456-134 4513448522-448 2523(40 4) 999999 1999184 98 695 202 864-199 738-301380 476 120(569 468) (432 131)70425256-147-53 373-129 29 189-(89 74 )28425 1253225 972125简单地订正练习题77201

6、65 63042 456-(256-36 )10235 9842 158 262 138 375 219 381 2255001-247-1021-232 (181 2564) 2719378 44 114 242 222276 228 353 219(375 1034) (966 125 )(2130 783 270) 1017999999999997755-(2187755 ) 22146382863065-738-10658993442357-183-317-3572365-1086-214 497-299 2370 1995简单地订正练习题81225 7524 138254 (1312

7、5)(38 )(12 24 80)50 70425 2532125 32(25 125 )88125 10276 5898 178101-1788436 6484 7599 275 83102-832 9819912318-1233 85123 50(344)3 25(24 16 )17899 178 7942 79 7957 215001257300254 8100475 16800120简单地修正练习题9(a b) c=a (b c )；2.73 0.89 1.274.37 0.28 1.63 5.72a-b-c等于a-(b-c )10 - 0.432 - 2.568 9.3 - 5.26 - 2.7414.9-(5.2 4.9) 18.32 - 5.47 - 4.32(a b)c=a (b c )；256.80.040. 25 320. 1256.41.25 12.5c (a b)=ca cb0.45 201 0.58 10.1 50.2 99 4.7 9.9二、列式修正算法1. 6000除以59和35之差的商是多少？2. 52和28之差乘以276，乘积是多少？3. 347和34之和除以75和72之差，商是多少？4 .除4.25175之外的商加上17和13的乘积之和是多少4000除以25的商减去13和12的乘积之差是多少6. 72和46的和乘以350减去143的差，乘