四年级数学四则运算与简便计算.docx
《四年级数学四则运算与简便计算.docx》由会员分享,可在线阅读,更多相关《四年级数学四则运算与简便计算.docx(9页珍藏版)》请在冰豆网上搜索。
![四年级数学四则运算与简便计算.docx](https://file1.bdocx.com/fileroot1/2022-12/9/4d37a9ab-8615-4b83-8581-2cf9bbfc0ec8/4d37a9ab-8615-4b83-8581-2cf9bbfc0ec81.gif)
四年级数学四则运算与简便计算
四年级数学四则运算与简便计算.
四则运算与简便计算练习题
一、计算下面各题
121-111÷37(120-103)×50
(284+16)×(512-8208÷18)120-36×4÷18+35
(58+37)÷(64-9×5)45×20×3
(136+64)×(65-345÷23)85+14×(14+208÷26)
(121-111÷37)×5280+650÷13
1000-(280+650÷13)760÷10÷38
9846-87×(360÷60)508×345÷(1526-1521)
121-111÷37(121-111÷37)×5280+650÷13
45×20×31000-(280+650÷13)(95-19×5)÷74
(120-103)×50760÷10÷38(270+180)÷(30-15)
707-35×20(95-19×5)÷74
19×96-962÷7410000-(59+66)×645940÷45×(798-616)
(270+180)÷(30-15)
(315×40-364)÷712520÷8×(121÷11)
(2010-906)×(65+15)707-35×20
50+160÷40(58+370)÷(64-45)120-144÷18+35347+45×2-4160÷52
(58+37)÷(64-9×5)95÷(64-45)178-145÷5×6+42
420+580-64×21÷28812-700÷(9+31×11)
(124-85)×12÷26(59+21)×(96÷8)
325÷13×(266-250)140-90÷5+678
分)24二、面各题,怎样简便就怎样计算。
(.
49×102-2×49125×76×8103×32
41000÷8÷1256756-193-207
5824÷8×(85-78)840÷28+70×18794-198
68×2572×12597×360+3×360
384+98×25×4724+26×24+724
三、用简便方法计算(12分)
756-193-207101×924800÷25÷488×125428×50+71×50+5098×134
(加减法接近整百数的简算)
184+98695+202864-199738-301
(加法交换律和结合律的运用)
380+476+120(569+468)+(432+131)
(减法的简算,重点:
运算符号变化的处理)
256-147-53373-129+2989-(89+74)456-(256-36)
(乘法交换律和结合律的运用,重点:
一个因数分成两个因数的处理)
28×4×25125×32×259×72×125
(乘法接近整百数的简算)
102×3598×42
(乘法分配律的运用)
26×39+61×26356×9-56×978×101-78
52×76+47×76+76134×56-134+45×13499×55+55
(乘法分配律的综合运用)
1999
+999×999)4+40×(23×4825×4-2×52×48.
四、综合练习:
158+262+138375+219+381+2255001-247-1021-232
32×(25+125)(181+2564)+2719378+44+114+242+222
276+228+353+219178×101-178(375+1034)+(966+125)
(2130+783+270)+101799+999+9999+9999988×125
7755-(2187+755)2214+638+2863065-738-1065899+344102×76
2357-183-317-3572365-1086-214497-2992370+1995
25×(24+16)3999+4981883-39812×2575×24
25×32×12579×42+79+79×57
138×25×4(13×125)×(3×8)(12+24+80)×50
704×25178×99+178
25×32×12532×(25+125)88×125
102×7658×9858×98
178×101-17884×36+64×84
75×99+2×758100÷4÷7516800÷120
83×102-83×250×(34×4)×3
25×(24+16)704×257300÷25÷4
98×199123×18-123×3+85×123
178×99+17875×24138×25×4
79×42+79+79×577300÷25÷4
8100÷4÷75(13×125)×(3×8)
16800÷12030100÷210032000÷400
50
×700(12+24+80)÷49700.
1248÷243150÷154800÷25
21500÷125123×18-123×3+85×123
158+262+138375+219+381+2255001-247-1021-232
(181+2564)+2719(2130+783+270)+1017
378+44+114+242+222276+228+353+219(375+1034)+(966+125)
99+999+9999+999997755-(2187+755)2214+638+286
3065-738-1065899+344
2357-183-317-3572365-1086-214497-299
2370+19953999+49850×(34×4)×3
1883-39812×2584×36+64×84
75×99+2×7583×102-83×298×199
五、脱式计算:
128+35×3700-125×3330÷5+46×7
104×9-72÷8145-150÷2+23984÷6×3
18×5+522÷348×3+240×289×2+86
450÷5+29×6784÷8+105×4252÷9÷(11-4)
560÷4-630÷7(210+630)÷7522÷(328-319)+42
(42+18)×(56-26)162÷6-96÷8305×(400-395)-278
149×5+520×4900÷(15÷3)58×(6×4)÷29
3+(289-198)×27362÷9×7953-180×5
64×8+78×22(439+725)÷68388÷9-668÷4
)5+340×()÷17100-51(425÷5-26×4.
(135+65)÷(15-7)(37×15-55)×8(445÷5+172)×18
300-(76+40×3)(279+32×15)×64(488+32×5)÷12
45+55÷5-2012×(280-80÷4)400-225÷5+145
156+187÷17×9325÷13×(266-250)(242+556)÷14×8
(105+24)×15÷3175+280÷40-25(205-101+152)÷8
(160+880)×20550+230×62÷314000÷25-13×12
六、简便运算
199999+19999+1999+199+19
9999×2222+3333×3334
56×3+56×27+56×96-56×57+56
98766×98768-98765×98769
七、小数加减混合运算题
25.6-(0.23+5.6)-1.7713.75-(4.75+6.48)7.83+2.34-0.83+6.66
3.82+2.9+0.18+9.125.48-((9.4-0.52)35.6-1.8-15.6-7.2
5.93+0.19+2.817.3+2.7-7.3+2.748.4+2.78+51.6-0.78
23.4+0.8-13.4-7.24.8+8.63+5.2+0.373.07-0.38-1.62
1.27+3.9+0.73+15.15.84-1.8-3.2132.44-(58.74+19.44)
7.5+4.8-6.53.25+2.76+1.7513.75-(3.75+6.48)
7.14-0.53-2.4713.45-4.68+2.5547.8-7.45+8.2
36.8-4.5+6.9849.8-9.6+8.815.2-6.8-3.45
1.76+0.65+3.240.134+2.66+0.87.5+4.9-6.3
3.45+1.79+0.654.85+8.63+0.371.76+3.44+0.35
36.54-1.76-8.668-2.45-1.0223.4+3.4-0.23
6.02+3.6+1.983.07-0.38-1.627.5+4.9-6.5
36.8-3.9-6.883.285+1.79+0.5923.4-0.8+13.4
32+4.9-8.61.29+3.7+2.715.93+0.49+2.06
9-2.45-1.6521+0.56+11.364.89-7.88-13.6