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800➗25用简便方法计算

980000➗25➗25➗4➗4 =980000➗(25×25×4×4) =980000➗(25×4×25×4) =980000➗10000 =98

600➗4➗25的简便计算 600➗4➗25 =600÷(4*25) =600÷100 =6

600➗15+600➗5用简便方法计算 600➗15+600➗5 =40+120 =160 直接计算

700➗28=100➗4=25

460➗25 =92x5➗5➗5 =92➗5 =18.4

8.75➗2.5*8.75➗2.5用简便方法 8.75➗2.5*8.75➗2.5 =3.5*3.5 =12.25 直接计算 没有简算

16800➗8➗25简便运算 16800➗8➗25 =16800÷(8*25) =16800÷200 =84

=125➗(5x5) =125➗25 =5

234➗(205-199) =234➗(205-200+1) =234➗6 =39

结合律。 列式为: 2100➗42 =2100➗(7x6) =2100➗7➗6 =300➗6 =50

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