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八道简便运算题及答案
1. 158+262+138 =158+(262+138) =158+400 =558 2. 375+219+381+225 =(375+225)+(219+381) =600+600 =1200 3. 5001-247-1021-232 =5001-(247+1021+232) =5001-1500 =3501 4. (181+2564)+2719 =(181+2719)+2564 =5464...
日期:2026-02-05 -
32道简便计算带答案
1、56+31+24 =(56+24)+31 =80+31 =111 2、615+475+125 =615+(475+125) =615+600 =1215 3、125×64 =125×8×8 =1000×8 =8000 4、 89+101+111 =101+(89+111) =101+200 =301 5、24+127+476+573 =(24+476)+(127+573) =500+700...
日期:2025-08-29