六年级第一学期计算能力竞赛试题
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六年级第一学期计算能力竞赛试题(20分钟)
姓名:___________班级:____________分数:____________
一、直接得数(每题1分,共25分)
112 +14 = 3.5+612 = 2―67 = 45 ―815 = 14 ―1
5 = 12 ―25 = 0.2―1
6 = 0.3+13 = 34 ×4= 56 ×8
15 = 316 ×49 = 15×123 = 724 ×34 = 0÷35 = 24÷3
4 = 2
5 ÷12 = 518 ÷123 = 89 ÷38 = 58 ÷23 = 9+29 = 12∏= 0.4 ×3.14= 0.92 = 2.5×3.4= 28÷23
=
二、脱式计算,能简算的要简算.(每题4分,共40分)
14 ×125×1125 ×8 (12 +13 +1
6 )×24
37 ×(45 -23 )÷315 3 18 ÷57 +3 18 ÷27
7 56 +8.9+2 1
6 +6.1 0.36×101
20 - (5.6 + 4.8)÷1.3 3.2×(2.15 + 1.95÷6.5)
(54 + 41)÷37 +
109 36×(41 + 6
1-31
)
三、解方程(每题5分,共35分)
10×x
=258 33÷x
=20
11
x
×53
=18×4
1 x
×31×5
3=4
4x —3 ×9 = 29 21x + 6
1
x = 4
43x + 4
1 = 83