|
六年级数学计算能手比赛
一、口算部分:(80题,每题0.2分)
0.1-0.01= - = 0.24×5= ÷ =
5.8×9+5.8= ÷10= × = 7.2÷0.08= ÷ = × = 15 = 24×( + )=
3.14×25= 3.14×36= 3.14×9= 3.14×12=
3.14×5 = 28.26÷3.14= 8л= + - + = 6л= 0.1+0.41= 162= + = 0.82= 120÷3÷20= 1- - = 3.5÷0.07= 27 +35 +57 = 11²= -( - )= 25 ×0×58 =
2.5×7×4=
6×58 +58 ×2= 1+45%= 1-30%= ÷100%=
二、解方程(6题,每题3分)
x- x=14 + x= 7- =2x
X+5= X X + = 5 x - x= ×45
三、用>排列下面各个数。(5分)
7.8 7.81 7.83% 7 7
( )> ( )> ( )> ( )> ( )
四、递等式计算。(12题,每题3分)
47 ÷32 +47 ÷3 (1- - )÷ (1÷14 + 14 ÷1)×8
12÷(1+ - ) ×4÷ ×4 1× ÷ ×
- ÷3+ ÷ - × + ÷( - × )
×( + )÷ ÷[ ×(1- )] 5- × -
五、能简便的要简便计算:(12题,每题2分)
× + × ( + )×48 3- -
× + ×0.6 × + ÷ ×101-
28×( + - ) ×51 90×491
25 ×4 (39× + ×4)÷ -( - )
|
|