六年级数学下册口算练习题.doc

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1、（1）97 + 258=369204=10125 =5012 =3603 =30050 =（2）362 + 298=363199=32101 =2540 =45090 =905 =（3）204 + 365=457302=1258 =1270 =48012 =50050 =（4）450 + 250=360240=5024=3106 =6015 =96030 =（5）4.1+ 0.9=2.31.8=0.29 =0.30.7 =0.63 =0.150.5 =（6）3 + 1.2=7.3 5 =0.20.4 =1.20.5 =2.40.6 =240.3 =（7）7.12+ 0.5 =6 1.8=1.5

2、0.4 =250.4 =4.20.07 =40.08 =（8）2 + 5.9=4.312.2=0.620 =1.630 =0.567 =0.420.6 =（9）2.4 + 4 =18.66 =401.2 =501.3 =0.480.8 =30.6 =（10）0.21 + 5 =6 2.6 =0.41.4 =1.50.8 =0.30.5 =0.10.2 = (11) + = + = + = = = =(12) + = + = + 2 =1=（13）3 =8 =3 =8 =3 =10 =（14）=（15）4 =8 =10 =6=1422=（16）=（17）883239302192016793195

3、4139212（18）18412219831041421929519239112（19）3527462942560334803604923831（20）1523472841540364503608926871（21） + = + = + = =（22） + =2 + = + = =2 = (23)8=21=15=6=7=36=(24) = = = = = =（25）2 =4 =7 =12 =9 =2 =（26）3 =3 =15 =4=24=（27）=（28）=（29）14=8=5=4=（30）9=30=（31）18 = 4=4=6=5=5=（32）=3 =10=（33）=（34）=9=5 =

4、(35)20=6=15=8=10=(36)=5=（37）297 + 248=569203=10136 =3032 =4503 =72060 =（38）303 + 299=467105=59101 =12580 =75050 =9519=（39）604 + 165=857502=2504 =1360 =60012 =39039 =（40）459 + 290=360204=4024=1306 =75025 =96080 =（41）4.1+ 5.9=5.31.8=0.59 =0.90.7 =1.26 =0.1515 =（42）7 + 1.2=5.3 5 =0.10.8 =1.80.3 =240.1

5、=3.41.7 =（43）7.1+ 0.5 =4 1.8=1.40.4 =240.5 =0.420.7 =60.2 =（44）5 + 5.9=5.314.2=0.690 =1.530 =0.357 =0.40.5 =（45）2.5 + 4 =16.66 =601.2 =401.3 =4.84.8 =300.5 =（46）0.25 + 0.5 =8 2.6 =0.51.4 =1.20.8 =0.35 =0.10.5 =（47）5 + 1.2=7.3 4 =0.50.3 =30.6 = + =（48）3.6+ 0.9=7.21.8=0.69 =2.43 = + = =（49）81323939720

6、20178911902129232（50）486121298390314992973942192（51）3525412823530344703605923841（52）1829482610520390804608926851（53）0.03 + 5 =42.6 =0.31.4 =0.40.5 = + =（54）4 + 5.9=6.542.2=0.720 =0.427 = + = =（55）3.6+ 0.9=7.21.8=0.69 =2.43 = + = =（56）5 + 1.2=7.3 4 =0.50.3 =30.6 = + =（57）2.12+ 0.5 =5 1.8=1.40.5 =3.50.07 = + =（58）5.3 + 4 =16.26 =301.2 =0.40.8 =+ 3 =1= (59)10 =6 =10 =3 =22 =5 =(60)1 =7 =12 =10 =6 = 10 =（61）=（62）=（63）8 =4=6=10=711=（64）2 =3 =8=10 =5 =6 =（65）21=8=5=8=（66）15=3=（67）4=6=5=4 =5=18=（68）=3 =10=（69）=（70）=5=9=(71)6=4=8=15=10=(72)=