六年级上册口算竞赛题
2014-2015学年六年级上册数学口算竞赛题
1 学校:__________ 姓名:_________ 成绩:________ 一、直接写得数。(54分) 1234358÷ = ÷6= × = ÷5=× 254747925 %= 6 ÷2=
2112122555÷3= ÷ =÷= ÷ = ÷= 1÷ = 3243355638
[1**********]15÷ = ÷= ÷ = ×= × = 0×(+ )= [1**********]9
611257331- = ×0= × = ×0.6= ×5× = 7345612145
47414119× = 0.3×3 %= ×100= 18×× = 1-= 1825611413
11151118×( +7÷8)= ÷2= × ×16 = ( + ×4 = 8354884
[1**********]÷( +)= ( + )×32 = × + × = (+)×7×5 =[1**********]
[1**********]5-72×÷ ×= 2÷7+ = × + × [1**********]27
二、准确计算:(8分)
143428÷ ÷ 90 %× 15103915
5128101: ÷ 15: 134835216三、简算(24分)
[1**********]006÷ +× ( ÷× [1**********]007
3332211196×+3×+ 25× 5 +74×40% + 5 12×(463 ) 101010
四、用递等式计算(9分)
7212556÷ + 40÷ 【4-(0.75- )】×(16 ×)×( 90 85433
% ×4) 3
五、解方程(5分)
2141- X=1 1- 3553