三年级数学上册计算题专项竞赛题Р姓名:___________班级:____________分数:____________Р一、口算(20分)Р300×5= 2400÷3= 15×3= 804÷4=Р9×500= 40×8= 20×7= 20÷5=Р90÷3= 64÷2= 149+111= 700÷7=Р40+30= 90×9= 23×3= 400÷4=Р50×4= 102×4= 500÷5= 800÷4=Р二、列竖式计算。(36分)Р(1)360×4= (2)208×3= (3)104×5= Р(4)125×6= (5)450×4= (6)250×4=Р(7)228×4= (8)160×5= (9)312×2=Р(10)234×3= (11)96÷3= (12)350÷5=Р三、脱式计算。(44分)Р(1)48÷6×25 (2)6×(121-103) (3)72÷8×6Р= = =Р= = =Р(4)6+25×6 (5)312×2×5 (6)6×(810-690)Р= = =Р= = =Р(7)25×3×4 (8)84+13×3 (9)320÷8×6Р= = =Р= = =Р(10)90+84÷4 (11)15×2×5 (12)285×2×5Р= = =Р= = =Р90-4.8= 45.2+12.05= 100+45.1=Р104.98+102.3= 205-42.6= 23.6+1.7=