六年级第一学期计算能力竞赛(20分钟)
姓名:___________班级:____________分数:____________
一、直接得数(每题1分,共25分)
11164811
+ = 3.5+6 = 2― = ― = ― = 12427515451211358
― = 0.2― = 0.3+ = ×4= × = 256346153427333
× = 15×1 = × = 0÷ = 24÷ = 169324454215283522 ÷ = ÷1 = ÷ = ÷ = 9+ = 5218398839
22
12∏= 0.4 ×3.14= 0.9= 2.5×3.4= 28÷ =
3
二、脱式计算,能简算的要简算。(每题4分,共40分)
11111
×125× ×8 ( + + )×24 4125236 34231512 ×( - )÷ 3 ÷ +3 ÷ 753158787 51
7 +8.9+2 +6.1 0.36×101 66
20 - (5.6 + 4.8)÷1.3 3.2×(2.15 + 1.95÷6.5)
( + )÷ +
4514739111 36×( + -)
31046
三、解方程(每题5分,共35分)
10×=x
811 33÷ = x
25
x
×3=18×154
4x—3 ×9 = 29
34x + 14 = 38
20 x
×1×335=4 112x + 6x = 4