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1、.周測一簡便計算25×32×125???????????????178×101-178?84×36+64×84?25×（24+16）???????75×99+75?????????????83×102－83×2?75×27+19×25??????????31×870+13×310?123×43-43×2350×(34×4)×3??????35×37+65×37????38×29+38??????????123×18－123×3+85×12345×71＋29×45（140-70）×54..周測二簡便計算4×(25×65+25×28)?????124+78+2
2、2?345+99??????9999+8888+7777+6666????100-35-25???245－（45+39）??25×27×4?????????????15×7+85×7?125×64????????????（40－4）×25???????75×4×2516×76－76×6????????????????????407－99???????????????99×53+53?103×35?????????????28×25??????????????????????????473+59+27+1??????????????98×99?41×25-2
3、5?????????????..周測三簡便計算125×（8×4）×5????88×125????????12×98??55×9912×29+12???????????????58×199+58???55×99+55????????????????42×79+42???69×101—69??55×21—55125×（80+8）??????????125×（80×8）?99×99+99125×32×2538×7+31×14???????25×46+50×27???????????????79×25+22×25—25?????76×36+36×24?????..
4、周測四簡便計算97×18—87×18???????125×55×?32?（80+8）×125?????????55?×102?56??×98??????55?×72?+55?×27?+5534×29+29×6619?×99?+19??235×562―135×562???199×63??????????????????????????????????????56×27+44×27201×86?26×34+78×34―34×4???299×131999×34?114×14―14×14?44×2516×24+79×24+24×5??123×57―57×23?..
5、周測五簡便計算86×14+14×14?????199×6536×34＋36×66???98×73103×39??????????2003×34??125×（8+80）（40＋8）×25??????????36×（100+50）?86×（1000－2）?????????????24×（2＋10）??????????15×（40－8）???????????????????93×6＋93×4???????325×113－325×1378×102??69×102??????56×101..52×102??????125×81?????????25×41??????
6、??????31×99?25×39101×38?42×98?????83＋83×9929×99?????????38×62+38×38???75×14—70×14125×81－12556＋56×99?????????99×99＋99?..75×101－75?????91×31－91（40＋8）×25?125×（8+80）?????36×（100+50）36×34＋36×66?24×（2＋10）??86×（1000－2）?15×（40－8）75×23＋25×23???63×43＋57×6356×10193×6＋93×4??325×113－325×13?28×
7、18－8×28?????????????..125×81???25×4131×99125×79??????????????????????????42×98????29×9925×3983＋83×99????????????????????????56＋56×99????235×562―135×562?99×99＋99????34×29+29×66????56×27+44×27199×63?????????201×86?299×13?85×98125×79???..?????????????????26×34+78×34―34×4?1999×34??16×
8、24+79×24+24×5???????????????????4
