五年级口算竞赛试题(正式)答案

广州市南国学校五年级口算竞赛试题答案

0.77÷11=0.07 3.56×100=356 0.9×

7=6.3 30.5÷5=6.1

5.3×0.1=0.53 41.2＋21= 62.2 5.66÷0.2=28.3 8.4÷0.7=12

501－98= 403 0.1×9.02= 0.902 110÷100= 1.1 1.01×9=9.09

3.1×10=31 125×7＋125=1000 0.65×5= 3.25 0.1×7=0.7

32.5÷0.5=65 2.58÷0.2= 12.9 0.7＋7.32= 8.02 480＋199=679

63÷0.7= 90 8×1.8= 14.4 0.3＋4.44=4.74 2.08×7=14.56

10÷8= 1.25 0.8＋7.62= 8.42 0.12×8=0.96 4.2÷0.1=42

1.6×3=4.8 1.2×0.6=0.72 100÷200=0.5 6.2×0.3=1.86

0.6×0.7=0.42 82＋118－99=101 2.8÷70= 0.04 0.9×0.4=0.36

6.3÷9= 0.7 1.2÷4=0.3 3.44＋0.56= 4 6.8－2.9=3.9

0.6×9=5.4 425×4=1700 4.2－0.8=3.4 7.34÷2=3.67

5.4÷1.8= 3 2.7÷30=0.09 7.34－2.1 =5.2 1.01×5=5.05 510÷100= 5.1 3.74＋4.26= 8 2.4×8=19.2 3.2÷0.04=80

0.54÷0.9=0.6 0.4×2.5=1 0.15÷0.3= 0.5 3.18×100=318

41×0.4=16.4 0.86÷0.02=43 0.08＋5=5.08 1.8×30=54

800×0.4=320 1.2÷6=0.2 34×567×0= 0 568－499=69

9÷5=1.8 7.6÷1.9=4 160－90= 70 816÷16=51

3.6÷40= 0.09 3.2÷1.6=2 7－0.16=6.84 9.9÷3=3.3

4.08＋0.3=4.38 9.3－3.5=

5.8 711÷3=237 930÷30=31

190÷0.2=950 3.6÷0.3=12 1.2×0.4=0.48 50.5÷5=10.1

4.2－0.8= 3.4 630÷45= 14 16×25= 400 0.8×0.4=0.32

7.4＋3.6= 11 2.5×40=100 0.56÷0.28=2 6.1－2.08=4.02

5.2×8= 41.6 7.2÷40= 0.18 4.3÷0.01=430 0.06×0.8=0.048

5×2.1＋2.1=12.6 2.5×4×0.5=5 3.4÷0.1－21= 13

555÷0.5÷100=11.1 100×2.1×0.03= 6.3 3.7＋1.26＋1.74=6.7

2.34－1.34×0=2.34 31－0.25－0.75=30 34.1＋21.50.9=56.5

9.7×12＋0.3×12=120 38×0.01＋0.02= 0.4 (1.2＋0.16)×0.1=0.136