六年级数学简便算法复习.doc
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六年级数学简便算法复习
(15+25)×2?? 3700-2185-815? ? 12×25???? 28×25??
125×(8+4)?? 32+144+68+56????? 2847-14×4×25×1?????
60×(15+500)???435+1999 8×(125+9)???46×18+54×18??
(400+16)×5??? 170×4+80×4???? 103×56?? 13×68+13×32??
(2+4)×15?? 5×(20+6)? 8×23+8×27?? 9×6+4×9?
99×14???? 75×99+75?? 102×36?? 49×80+80??
430-216-184?? 67×9+33×9?? (13×8)×125? 20×(17×5)??
14×20×5???? 276×38+276×62????? 102×26?????????
25×(40×32) (5×7)×80???? 8×14×125×6?? 16×25×5×4????? 25×13×4???
? 2843-598?????? 4×8×25×125??????? 259+468+741+532????????? 36×25??
12×15+12×35???????? 31×128-28×31????? (25+250)×4???? (125×125)×8?? ???? (712 - 15 )×60???????????????????????? 47 ×613 +37 ×613???
2538 ×8?????????????????????????????? 227 ×(15×2728 )×215 ?710 ×101- 710???????????????????? 89 ×89 ÷89 ×89?????????????????? 35 × 99 + 35???? ?
( 47 + 89 )×225?????????????? 1521 ×34 + 1021 ×34 - 34??????????????????? 345 ×25?? ?
? 36×3435?????????????????????????????? ( 56 - 59 )×185?
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