2020年二年级数学上学期口算竞赛试

二年级数学上学期口算竞赛试题

姓名班级

一、口算（每题0.5分，共24分）

7 + 6 =5 + 9 =8 + 7 =5 + 8 =7 + 9 =9 + 8 =5 + 7 =8 + 4 =9 + 3 =9 + 9 =3 + 8 =6 + 5 =7 + 4 =8 + 8 =

2 + 9 =7 + 7 =3 + 7 =6 + 6 = 8 + 6 =3 + 8 =5 + 5 =7 + 8 = 15–6 =14–7 =11–8 =14–9 = 15–9=16–7=13–6=16–9= 12–8 =11–7 =18–9 =17–8 = 13–7 =15–8 =14–5 =11–9 = 17–9 =11–5 =13–8 =

二、口算（每题1分，共24分） 28 + 20 =58–6 =66–60 =75–30 = 71 + 23 =89–8 =50 + 24 =4 + 55 = 66–60 =38 + 21 =30 + 34 =69–7 = 73–70 =95–50 =25 + 44 =62 + 7 = 86–60 =91–50 =36 + 30 =51 + 25 =

三、在（）里填上适合的数。（每题2分，共24分）6 + 8 =6 + 9 =12–4 =15–7 =11–5=14–8 =17–9 =38 + 40 =

96–20 =59–4 =30 + 49 =

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3 +（）=735 +（）=704 +（）=1743 +（）=9338–（）=868–（）=48（）–6 = 50（）+ 20 = 6648 =（）+2063=（）+1372=（）+ 7059=（）+ 9

四、计算。（每题2分，共28分） 18+9–9 =12–8 + 70 =70–30 + 6 = 99–9–40 =5 + 70–5 =9 + 7 + 20 = 30 + 6 + 4 =55–5 + 15 =36 +30 +20= 13–5 + 50=82–80 +8=46 + 40 + 2 = 14–5 + 30 =5 + 5 5 +20=

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