小升初计算题-脱式计算-简便计算（含答案）.doc

1、 第 1 页 小学毕业计算题脱式计算、简便计算 （480075+36）12= 10245= 517+1905 15-629 = 2.5 4.4= 2712-3534 114 52= 1 1+0 26+26 1= 101-1 (88 88+25 4) 3.31-18.34 7 0.5 1 0.25+0.25 1-2.5 0.1 8.8 1.25 100 4 8.76-5.29-2.71+1.24 19999+9999 9999 0.8 7.7+3.3 0.8-0.8 40+1.25 15 3.2 13.5 2+14 17 0.98 4.8 21.6-0.8 4 0.8 4 0.75 0.5+0.

2、04 5 19.98 37-199.8 1.9+1998 0.82 80400-4832 16 150 0.125 5.6 0.7 76 1.04+1.04 25-1.04 5 2 (0.1 0.6+0.94) ( 3 2 - 7 4 ) 21+ 5 4 ( 4 1 5 4 ) 10 1 7 2 0.25 32 12.5 2451 43 19 43 51 16) 8 1 9( 3 2 ( 3 2 ) 5 4 2 1 5 4 18 () 9 7 6 2 1 15.64- 7 4 +4.36- 7 3 ( 9 5 24) 8 3 12 7 7.5 2.37+25 0.289 60 ( ) 2 1

3、15 4 12 5 ( 12 1 ) 3 2 20 9 15 8 20-(12 6 5 ) 3 1 2 1 5.17-0.38-1.62 1.25 3.6+1.25 3.4+1.25 35 (1- 12 5 ) 7 4 24 10.5-3549 39 7 2 7 5 3 4 3.14 5.3+3.14 4.7 第 2 页 83025 27+935 36.5-6.5 4.72 108 ( 3) 3 1 6 5 10 9 8 5 5 4 7 3 24 2.4-2.5 0.4 ( 48) 4 1 3 1 2 1 24.5-(7.58+ 3 5 5 9 ) 2.5 (1.92 0.3-5.9) 67.

4、5314-(19.376-2.4686) %808 . 06 . 74 . 3 5 4 24-4.8 (2 5 6 )25. 1 2 1 12 1.43+0.57 12-12 0.99+9.999+99.9 ( 4) 4 3 4 3 4 7 272 16+204 6 (227 25-4.68) 0.11 7.75-2.4+2.25-6.6 32 21 16 5 10 7 3.7-0.25 (3-1.6) 98.6-29.3+11.4-30.7 5.3%603 . 1 5 3 5 2 3 1 2 1 12 5 2.65 1.7+1.35 1 10 7 (1-15 35)4 3 (12.4 2.5

5、-2 2 1 ) 19 (1.9-1.9 0.9) (17.6-17.41) 0.625 5.8+ 8 1 52 . 3 8 5 9263 9 4 30 23 1260 28+63 52 ( ) 2 3 2() 2 1 3 1 5 4 5 3 4 5 5 2 ( 8 5 ) 6 5 32. 768.10 6 5 5 3-7 () 21 1 7 1 0.5 10.6 (4.5+ 5 4 ) 9 7 7 3 7 5 7 4 15.2 96+15.2 5-15.2 ( 8 1 7 6 ) 3 1 2 1 ) 5 4 1 (1 3 2 2 1 ) 5 2 3 1 ( 5 4 0.7 24.5+0.7

6、76.5-0.7 75%4 1 1.08 (3.94+34.3 0.2) 18.75 3.8-8.75 3.8 245 1 +76 5 第 3 页 2100 56 ( 8 3 7 3 ) 7 4 5 4 9 5 7 5 5- 7 2 21 10 2 3 3.7 99+3.7 95.6 18+0.4 18 12 ( 3 1 6 1 4 1 ) 0.625 0.5+%5 .62 2 1 8 5 1.75 0.8+9.2 1 4 3 8281 1 ) 5 4 3 2 ( 2 1 20 9 1 (3.25- 4 3 0.6) 37 1.25 76 8 168 (4.4 2-0.4) ( ) 3 1 1

7、 () 10 1 3 4 3 9 8 3 9 13 5 13 8 1.44 1.2 (0.742+0.458) 4.05-2.74-1.26 (48+1100 30) 72 95.6 8+0.4 0. 25 100.65-45.63+9.35-14.37 25 10 9 5 3 9 1 (99 99+99) 0.99 78 199 0.072 87.5+8.75 0.28 35 1.25 0.08 2 4- 4 1 15 8 5 2 4 3 ) 5 1 4 1 ( 18 5 240 0.25+0.25 40 18.34 7 0.5 18 ( ) 6 1 2 1 9 1 1 (6.8- 5 3

8、0.75) 9 2.5 0.4 ) 5 4 3 2 ( 2 1 20 9 3.7 99+3.7 1500-15 80 6.25- 40 16 2.5 8546-239 11+775 14.58-1.58 8+31.2 1.2 0.264 519+26.4 4.81 6.4 （1- 5 . 1) 8 3 ) 4 1 5 2 ( 10 9 8 11 0.125 5.6 0.7 （1-) 5 1 1 12 7 () 9 8 4 3 8 5 .12 4 3 第 4 页 50 1 4 3 25 4 9897 96 60 () 2 1 15 4 12 5 60 () 2 1 15 4 12 5 ( 9 5

9、 24) 8 3 12 7 18 （) 9 7 6 2 1 第 5 页 小学毕业计算题脱式计算、简便计算 （ 4800 75+36 ） 12=1200 102 45=4590 517+1905 15-629 =15 2.5 4.4=11 2712-3534 114 52=1100 1 1+0 26+26 1=27 101-1 (88 88+25 4) =0 3.31-18.34 7 0.5=2 1 0.25+0.25 1-2.5 0.1=4 8.8 1.25 100 4=275 8.76-5.29-2.71+1.24=2 19999+9999 9999=100000000 0.8 7.7+3.

10、3 0.8-0.8=8 40+1.25 15 3.2=100 13.5 2+14 17=265 0.98 4.8=4.704 21.6-0.8 4 0.8 4=5.6 0.75 0.5+0.04 5=1.7 19.98 37-199.8 1.9+1998 0.82=1998 80400-4832 16 150=35100 0.125 5.6 0.7=1 76 1.04+1.04 25-1.04=104 5 2 (0.1 0.6+0.94)=2/5 ( 3 2 - 7 4 ) 21+ 5 4 =14/5 ( 4 1 5 4 ) 10 1 7 2 =1/5 0.25 32 12.5=100 245

11、1 43 19 43 51 =51 16) 8 1 9( 3 2 =12 ( 3 2 ) 5 4 2 1 5 4 =3/5 18 () 9 7 6 2 1 =93 15.64- 7 4 +4.36- 7 3 =19 ( 9 5 24) 8 3 12 7 =40/9 7.5 2.37+25 0.289=25 60 () 2 1 15 4 12 5 =11 ( 12 1 ) 3 2 20 9 15 8 =10 20-(12 6 5 ) 3 1 2 1 =8 5.17-0.38-1.62=3.17 1.25 3.6+1.25 3.4+1.25=10 35 (1- 12 5 ) 7 4 =36 24

12、10.5-3549 39=161 第 6 页 7 2 7 5 3 4 =1/3 3.14 5.3+3.14 4.7=31.4 83025 27+935=4010 36.5-6.5 4.72=5.82 108 ( 3) 3 1 6 5 =72 10 9 8 5 5 4 7 3 =31/28 24 2.4-2.5 0.4=9 (48) 4 1 3 1 2 1 =20 24.5-(7.58+ 3 5 5 9 ) = 13.92 2.5 (1.92 0.3-5.9) =1.25 67.5314-(19.376-2.4686)=50.624 %808 . 06 . 74 . 3 5 4 =8 24-4.

13、8 (2 5 6 )25. 1 2 1 =15 12 1.43+0.57 12-12 =12 0.99+9.999+99.9=110.889 (4) 4 3 4 3 4 7 =6 272 16+204 6 =1241 (227 25-4.68) 0.11=40 7.75-2.4+2.25-6.6=1 32 21 16 5 10 7 =1/3 3.7-0.25 (3-1.6)=3.35 98.6-29.3+11.4-30.7=50 5.3%603 . 1 5 3 =2.4 5 2 3 1 2 1 12 5 =5/3 2.65 1.7+1.35 1 10 7 =6.8 (1-15 35)4 3 =

14、3/7 (12.4 2.5-2 2 1 ) 19 =1.5 (1.9-1.9 0.9) (17.6-17.41) =0.0361 0.625 5.8+ 8 1 52 . 3 8 5 =6.25 9263 9 4 30 23 =207 1260 28+63 52=3321 () 2 3 2() 2 1 3 1 =5/18 5 4 5 3 4 5 5 2 =5/4 ( 8 5 ) 6 5 32. 768.10 6 5 =24 5 3-7 () 21 1 7 1 =1/3 0.5 10.6 (4.5+ 5 4 ) = 1 9 7 7 3 7 5 7 4 =17/15 15.2 96+15.2 5-1

15、5.2=1520 ( 8 1 7 6 ) 3 1 2 1 =15/56 ) 5 4 1 (1 3 2 =17/3 2 1 ) 5 2 3 1 ( 5 4 =13/30 0.7 24.5+0.7 76.5-0.7=70 75%4 1 =3 1.08 (3.94+34.3 0.2)=0.1 第 7 页 18.75 3.8-8.75 3.8=38 24 5 1 +76 5=20 2100 56 ( 8 3 7 3 )=700 7 4 5 4 9 5 7 5 =269/315 5- 7 2 21 10 2 3 =4 3.7 99+3.7=370 95.6 18+0.4 18=1728 12 ( 3 1

16、 6 1 4 1 )=1 0.625 0.5+%5 .62 2 1 8 5 =5/4 1.75 0.8+9.2 1 4 3 =17.5 8281 1 = 82/81 ) 5 4 3 2 ( 2 1 20 9 =27/44 1 (3.25- 4 3 0.6) =1/2 37 1.25 76 8 =28120 168 (4.4 2-0.4)=20 () 3 1 1 () 10 1 3 4 3 =1/10 9 8 3 9 13 5 13 8 =69/8 1.44 1.2 (0.742+0.458)=1 4.05-2.74-1.26=0.05 (48+1100 30) 72=459 95.6 8+0.

17、4 0. 25=766.4 100.65-45.63+9.35-14.37=50 25 10 9 5 3 9 1 =3/2 (99 99+99) 0.99=10000 78 199=15522 0.072 87.5+8.75 0.28=8.75 35 1.25 0.08 2=7 4- 4 1 15 8 5 2 =3 4 3 ) 5 1 4 1 ( 18 5 =1/6 240 0.25+0.25 40=70 18.34 7 0.5=1.31 18 () 6 1 2 1 9 1 =14 1 (6.8- 5 3 0.75)=1/6 9 2.5 0.4=9 ) 5 4 3 2 ( 2 1 20 9 =

18、27/44 3.7 99+3.7=370 1500-15 80=300 6.25- 40 16 2.5=0 8546-239 11+775=6692 14.58-1.58 8+31.2 1.2=27.94 0.264 519+26.4 4.81=264 6.4 （ 1-5 . 1) 8 3 =2.5 ) 4 1 5 2 ( 10 9 8 11 =11/2 0.125 5.6 0.7=1 第 8 页 （1-) 5 1 1 12 7 () 9 8 =10/63 4 3 8 5 .12 4 3 =100 50 1 4 3 25 4 =1/10 98 97 96 =9408/97 60 () 2 1 15 4 12 5 =71 ( 12 1 ) 3 2 20 9 15 8 =10 ( 9 5 24) 8 3 12 7 =13/9 18 （) 9 7 6 2 1 =93