用简便方法计算.
0.25
＋0.25×3－0.06＝[
]|
A ．1.96 |
B ．10 |
|
C ．6 |
D ．0.94 |
用简便方法计算.
（
7.45－2.48－2.52）×0.8＝[
]|
A ．1.96 |
B ．10 |
|
C ．6 |
D ．0.94 |
用简便方法计算.
2.4
×（3.3－1.8）＋2.4＝[
]|
A ．1.96 |
B ．10 |
|
C ．6 |
D ．0.94 |
4.8
除以2.3加上1.8乘0.5的积，商是[
]|
A ．1.7 |
B ．44.88 |
|
C ．3.2 |
D ．1.5 |
13.2
除以0.5的商，再乘4减去2.3的差，积是[
]|
A ．1.7 |
B ．44.88 |
|
C ．3.2 |
D ．1.5 |
9.3
÷（10－5.84×1.5）＝[
]|
A ．6.2 |
B ．1.24 |
|
C ．7.5 |
D ．2.6 |
2.028
÷[（20.45－18.5）×0.4]＝[
]|
A ．6.2 |
B ．1.24 |
|
C ．7.5 |
D ．2.6 |
（
50.6－48.9）×（2.5－1.7）＝[
]|
A ．1.36 |
B ．2.07 |
|
C ．27.8 |
D ．10.05 |
12.48
÷2.6×0.25＋8.85＝[
]|
A ．1.36 |
B ．2.07 |
|
C ．27.8 |
D ．10.05 |
23.6
÷0.4－39×0.8＝[
]|
A ．1.36 |
B ．2.07 |
|
C ．27.8 |
D ．10.05 |