2019-2020年二年级数学上学期口算竞赛试题(I).doc

2019-2020年二年级数学上学期口算竞赛试题(I)一、口算。（每题1分，计60分）86= 72 + 19 = 6 1 = 180180= 488 =45 + 37 = 47= 550550= 500370= 25 + 75 =55 +88 = 3200 700= 69+24= 35080 = 77 + 66 =790 + 130 = 8729= 800330 = 99+11= 257257=65 + 35 = 69 8 = 92 + 46 = 467 = 506=0 8 = 39 9 = 9339 = 8668= 1000300=29+63= 5445 = 7 7 = 75 9 = 819 =800260= 860= 47080 = 557 38 + 52 =250+630= 77 + 33 = 380+70= 500490= 667 =6 6 = 9568= 0 9 = 279= 910320=73 + 37 = 0 9 = 680+220= 550+260= 254=0 + 9 = 5738= 8 9 = 478= 126126=二、计算（每题1分，计24分）42+427= 648+70= 500+320+80= 60+60+60=888= 1300+7001000= 30306= 1655050=273+35+65= 120 + 395 + 80 = 909090= 40003500 + 500=1002377= 165+165165= 65（4025）= 2876=800+683600= 45+3645= 585= （27+36）7=650599+250= 58+9758= 989231+231= 53（48+5）=三、计算（每题2分，计16分）7809+98= 1+2+3+4+5+6+7+8+9=81999999= 15+15+15+15+15+15=8989898989= 64582 8=147+148+149+150+151+152+153= 1+2+3+4+5+6+94+95+96+97+98+99=附送：2019-2020年二年级数学上学期口算竞赛试题一、 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 = 6 + 8 = 2 + 9 = 7 + 7 = 3 + 7 = 6 + 6 = 6 + 9 = 8 + 6 = 3 + 8 = 5 + 5 = 7 + 8 = 12 4 = 15 6 = 14 7 = 11 8 = 14 9 = 15 7 = 15 9 = 16 7 = 13 6 = 16 9 = 11 5 = 12 8 = 11 7 = 18 9 = 17 8 = 14 8 = 13 7 = 15 8 = 14 5 = 11 9 = 17 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 = 38 + 40 = 71 + 23 = 89 8 = 50 + 24 = 4 + 55 = 96 20 = 66 60 = 38 + 21 = 30 + 34 = 69 7 = 59 4 = 73 70 = 95 50 = 25 + 44 = 62 + 7 = 30 + 49 = 86 60 = 91 50 = 36 + 30 = 51 + 25 =三、在（ ）里填上合适的数。（每题2分，共24分） 3 +（ ）=73 5 +（ ）=70 4 +（ ）=17 43 +（ ）=93 38 （ ）=8 68 （ ）=48 （ ） 6 = 50 （ ）+ 20 = 66 48 =（ ）+20 63=（ ）+13 72=（ ）+ 70 59=（ ）+ 9四、计算。（每题2分，共28分）18+9 9 = 12 8 + 70 = 70 30 + 6 = 46 + 40 + 2 = 99 9 40 = 5 + 70 5 = 9 + 7 + 20 = 14 5 + 30 = 30 + 6 + 4 = 55 5 + 15 = 36 +30 +20= 5 + 5 5 +20= 13 5 + 50= 82 80 +8=