簡便計算專題訓練

158+262+138

375+219+381+225

5001-247-1021-232

(181+2564)+2719378+44+114+242+222276+228+353+219

(375+1034)+(966+125)(2130+783+270)+1017

99+999+9999+99999

7755-(2187+755)2214+638+286

3065-738-1065

899+3442357-183-317-3572365-1086-214

497-2992370+19953999+498

1883-39812x2575x24

138x25x4(13x125)x(3x8)(12+24+80)x50

簡便計算練習題2

姓名得分

704x2525x32x12532x(25+125)

88x125102x7658x98

178x101-17884x36+64x8475x99+2x75

83x102-83x298x199123x18-

123x3+85x123

50x(34x4)x325x(24+16)178x99+178

79x42+79+79x577300-25-48100-4-75

16800-12030100-210032000-40021500-125

49700-7001248-243150-154800-25

簡便計算練習題3

姓名得分

2356-(1356-721)1235-(1780-1665)75x27+19x25

31x870+13x3104x(25x65+25x28)

第一種

(300+6)x1225x(4+8)125x(35+8)(13+24)x8

第二種

84x101504x2578x10225x204

第三種

99x6499x16638x99999x99

第四種

99X13+1325+199X2532X16+14X32

78X4+78X3+78X3

第五種

125X32X825X32X12588X12572X125

簡便計算練習題4

姓名得分

第六種

3600-25-48100-4-753000-125-8

1250-25-5

第七種

1200-624-762100-728-772273-73-27

847-527-273

第八種

278+463+22+37732+580+2681034+780320+102

425+14+186

第九種

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

178X101-17883X102-83X217X23-23X7

35X127-35X16-11X35

簡便計算練習題5

姓名得分

容易出錯類型（共五種類型）

600-60-1520X4-20X4

736-35X2025X4-25X4

98-18X5+2556X8-56X8280-80-

412X6-12X6

175-75-2525X8-25X8

80-20X2+6036X9-36X9

36-36-6-625X8+25X8)

100+45-100+4515X97+3

100+1-100+148X99+1

1000+8-1000+85+95X28

102+1-102+165+35X13

25+75-25+7540+360-20-10

13+24X8672-36+64324-68+32

100-36+64

簡便計算練習題6

姓名得分

26X39+61X26356X9-56X999X55+55

78X101-7852X76+47X76+76134X56-134+45X134

48X52X2-4X4825X23X(40+4)999X999+1999

184+98695+202864-199738-301

380+476+120(569+468)+(432+131)704X25

256-147-53373-129+29189-(89+74)

28X4X25125X32X259X72X125

簡便計算練習題7

姓名得分

7204-164-56304-42456-(256-36)

102X3598X42158+262+138375+219+381+225

5001-247-1021-232(181+2564)+2719378+44+114+242+222

276+228+353+219(375+1034)+(966+125)(2130+783+270)+1017

99+999+9999+999997755-(2187+755)2214+638+286

3065-738-1065899+3442357-183-317-357

2365-1086-214497-2992370+1995

簡便計算練習題8

姓名得

分

3999+4981883-39812X2575X24

138X25X4(13X125)X(3X8)(12+24+80)X50

25X32X12532X(25+125)88X125102X76

178X101-17884X36+64X8475X99+2X75

98X199123X18-123X3+85X12350X(34X4)X3

25X(24+16)178X99+17879X42+79+79X57

73004-254-481004-44-75158+262+138

簡便計算練習題9

姓名得分

1248+2431504-1548004-25215004-125

375+219+381+2255001-247-1021-232(181+2564)+2719

378+44+114+242+222276+228+353+219(375+1034)+(966+125)

(2130+783+270)+101799+999+9999+999997755-(2187+755)

2214+638+2863065-738-1065899+344

2357-183-317-3572365-1086-214497-299

2370+19953999+4981883-398

簡便計算練習題10

姓名得分—

12X2575X24138X25X4(13X125)X(3X8)

(12+24+80)X50704X2525X32X12532X(25+125)

88X125102X7658X98178X101-178

84X36+64X8475X99+2X7583X102-83X298X199

123X18-123X3+85X12350X(34X4)X325X(24+16)

178X99+17879X42+79+79X57215004-125

73004-254-481004-44-75168004-120

簡便計算練習題11

姓名得分—

(a+b)+c=a+(b+c)

2.73+0.89+1.274.37+0.28+1.63+5.72

a-b-c=a-(b+c)

10-0.432-2.5689.3-5.26-2.74

14.9-(5.2+4.9)18.32-5.47-4.32

(aXb)Xc=aX(bXc)

25X6.8X0.040.25X32X0.1256.4X1.25X12.5

cX(a+b)=cXa+cXb

0.45X2010.58X10.150.2X994.7X9.9

簡便計算練習題12

姓名得分

3.28X5.7+6.72X5.72.1X99+2.1

23X0.1+2.3X9.90.18+4.26-0.18+4.26

0.58XI.34-0.58X1.37.34-4+2,7X0.25

3.75X0.5-2.75925.26X0.125+2.74+8

a-i-b-r-c=a-i-(bXc)

6.34-1.89.54-(1.9X8)12.84-(0.4X1.6)

9304-0.64-563.44-2.50.4(7.7+1.54)4-0.7

簡便計算練習題13

姓名得分—

6.9+4.8+3.115.89+(6.75-5.89)7.85+2.34-0.85+4.66

35.6-1.8-15.67.213.75-(3.75+6.48)47.8-7.45+2.55

66.86-8.66-1.0.25X16.2X40.25X32X0.125

2.5X(4+0.4)(1.25-0.125)X84.8X100.1

4.2X9956.5X9.9+56.57.09X10.8-0.8X7.09

3.83X4.56+3.83X5.443.65X4.7-36.5X0.375.4X11-5.4

13.7X0.25-3.7+410.7X16.1-1.1X10.7+10.7X5

運算定律和性質

1、加法交換律：兩個加數交換位置，和不變。這叫做加法交換律。

用字母表示：a+b=b+a

2、加法結合律：三個數相加，先把前兩