六年级数学口算竞赛题
班别: 姓名: 评价:
0.1×0.02= 4.2 ÷ 0.1 = 100×0.35 =
100-1.01= 18.2+0.28= 4.2÷0.07= 0.75÷43÷9
7
= 1÷(511-0.2)=
1000÷25×8=
3.17+8.13= 65÷12
5= 98×249= 3.7+7.6 =
25×125×4×8=
1÷94 =
139×612= 61+3
2= 41×2
1 = 21×31÷21×31= 25÷110
=
(0.28+10
7
)÷7 =
3-76 =
43
×8 = 54×125= 21
3÷ 1 = =?694
=÷9461 =?8361 =÷3191 =÷47
4
=?571
=÷5152 =?15
8165 32-=4
1 =+4
331 18×(32+65+9
4)=
201+153= 61×0.03= 6.04-1.94= 910÷13= 15÷0.25= 1.5×25 =
5
9 ×1.8= 2.5×0.4= 2.4+1.6= 24×38 =
512 ÷56 = 57 ×2125 = 1
4
÷25%= 32×2.5=
6.42÷6=
二、计算(能简算的要简算) 4.67-(2.98+0.67)
73.8×16-7.38×60
(45 +14 )÷73 +710
25 ÷(34 +25
) 三、列综合算式或方程计算。
1、一个数比40的
3
10
多1.2,求这个数。
2、18减去它的1
3
是多
少?
四、把下列的比化简 6:10=
12:21=
16284 = 25 :14
=
120 :15
= 5
8
:2= 0.3:0.4=
0.25:1= 3:0.5=
五、化简下列各比
16:20= 2:14
=
4.5:6= 5:0.35= 7.5:10= 3952 = 23 :12 = 6.3:0.9=
1:0.125=