题目内容
8
-2.5-2.5=[
]|
A .5.5 |
B .8.6 |
|
C .0.3 |
D .3 |
答案:D
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8-2.5-2.5=
[ ]
|
A.5.5 |
B.8.6 |
|
C.0.3 |
D.3 |
口算.
|
(1)0.5 ×5+2.5= |
(2)1.6 ×0.25= |
|
(3)8.6 +2.4-2.6= |
(4)(5 +2.5)×8= |
|
(5)3.2 ×0.2×5= |
(6)8 ×4×2.5= |
|
(7)0.8 ×1.25×10= |
(8)7.1 -(2.1+1.5)= |