四年級下冊簡便計算練習(xí)題

1、連加和連減的簡易計算158+262+138375+219+381+22550012471021232（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+4982356（1356721）1235（17801665）429-163-129429-（45+229）429-1

2、63-237429-145+45連乘和連除的簡易計算138254(13125)(38)25（24+16）70425253212532(25+125)8812510276589816800120301002100320004002150012549700700124824315015480025運用乘法分派律進行簡易計算1781011788436+64847599+2758310283298199123181233+8512350(344)317899+1787942+79+7957730025481004757527+192531870+133104(2565+2528)簡易計算的十二種方式第

3、一種(300+6)x1225x(4+8)125x(40+8)(125+8)x8第二種84x101504x2578x10225x204第三種99x6499x16638x99999x99第四種99X13+1325+199X2532X16+14X3278X4+78X3+78X3第五種125X32X825X32X12588X12572X125第六種36002548100475300012581250255第七種1200-624-762100-728-772273-73-27847-527-273第八種278+463+22+37732+580+2681034+780320+102425+14+186第九

4、種214-（86+14）787-（87-29）365-（65+118）455-（155+230）第十種576-285+85825-657+57690-177+77755-287+87第十一種871-299157-99363-199968-599第十二種178X101-17883X102-83X217X23-23X735X127-35X16-11X35簡易計算簡單犯錯種類（共五種種類）600-601520X420X4736-35X2025X425X498-18X5+2556X856X8280-80412X612X6175-752525X825X880-20X2+6036X936X936-366-

5、625X8（25X8）100+45-100+4515X97+3100+1-100+148X99+11000+8-1000+85+95X28102+1-102+165+35X1325+75-25+7540+36020-1013+24X8672-36+64324-68+32100-36+64簡易計算練習(xí)題1姓名得分263961263569569995555781017852764776761345613445134485224482523（404）999999199918498695202864199738301380476120（569468）（432131）704252561475337312

6、929189（8974）284251253225972125簡易計算練習(xí)題2姓名得分72016563042456（25636）102359842158+262+138375+219+381+22550012471021232（181+2564）+2719378+44+114+242+222276+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+1995簡

7、易計算練習(xí)題3姓名得分3999+498188339812257524138254(13125)(38)(12+24+80)50253212532(25+125)88125102761781011788436+64847599+27598199123181233+8512350(344)325（24+16）17899+1787942+79+795773002548100475158+262+138簡易計算練習(xí)題4姓名得分12482431501548002521500125375+219+381+22550012471021232（181+2564）+2719378+44+114+242+2222

8、76+228+353+219(375+1034)+(966+125)(2130+783+270)+101799+999+9999+999997755(2187+755)2214+638+28630657381065899+3442357183317357236510862144972992370+19953999+4981883398簡易計算練習(xí)題5姓名得分12257524138254(13125)(38)(12+24+80)5070425253212532(25+125)881251027658981781011788436+64847599+275831028329819912318123

9、3+8512350(344)325（24+16）17899+1787942+79+7957215001257300254810047516800120小數(shù)的加法和減法的簡易計算（ab）c=a（bc)2.730.891.274.370.281.635.72abc=a（bc）100.4322.5689.35.262.7414.9（5.24.9）18.325.474.32（ab）c=a（bc）256.80.040.25320.1256.41.2512.5c（a+b）=cacb0.452010.5810.150.2994.79.9簡易計算練習(xí)題6姓名得分3.285.76.725.72.1992.123

10、0.12.39.90.184.260.184.260.581.30.581.37.342.70.253.750.52.7525.260.1252.748abc=a（bc）6.31.89.5（1.98）12.8（0.41.6）9300.6563.42.50.4（7.71.54）0.7簡易計算練習(xí)題7姓名得分6.94.83.115.89(6.755.89)7.852.340.854.6635.61.815.67.213.75(3.756.48)47.87.45+2.5566.868.661.340.2516.240.25320.1252.5(4+0.4)(1.250.125)84.8100.14.

11、29956.59.956.57.0910.80.87.093.834.563.835.443.654.736.50.375.411-5.413.70.253.7410.716.1-1.110.7+10.75運算定律和性質(zhì)1、加法互換律：兩個加數(shù)互換地點，和不變。這叫做加法互換律。用字母表示：a+b=b+a2、加法聯(lián)合律：三個數(shù)相加，先把前兩個數(shù)相加，或許先把后兩個數(shù)相加，和不變。這叫做加法聯(lián)合律。用字母表示：（a+b）+c=a+(b+c)3、乘法互換律：兩個因數(shù)互換地點，積不變。這叫做乘法互換律。用字母表示：ab=ba4、乘法聯(lián)合律：三個數(shù)相乘，先把前兩個數(shù)相乘，或許先把后兩個數(shù)相乘，積不變。這叫做乘法聯(lián)合律。用字母表示：（ab）c=a(bc)5、乘法分派律：兩個數(shù)的和與一個數(shù)相乘，能夠先把它們與這個數(shù)分別相乘，再相加。這叫做乘法分派律。用字母表示：（a+b）c=ac+bca(b+c)=ab+ac拓展：（a-b）c=ac-bca(b-c)=ab-ac6、減法的性質(zhì)：一個數(shù)連續(xù)減去兩個數(shù)，能夠減去這兩個減數(shù)的和。