如果△÷○=□,下列算式中________是正确的.
[ ]
|
A.□÷△=○ |
B.△×□=○ |
|
C.△÷□=○ |
D. ○÷△=□ |
用简便方法计算
4×43×25=
[ ]
|
A.5300 |
B.4300 |
|
C.1300 |
D.2300 |
用简便方法计算
560÷14÷4=
[ ]
|
A.40 |
B.20 |
|
C.10 |
D.30 |
用简便方法计算
125×48=
[ ]
|
A.6000 |
B.5000 |
|
C.1000 |
D.3000 |
用简便方法计算
810÷27=
[ ]
|
A.60 |
B.20 |
|
C.10 |
D.30 |
6300÷9÷7=6300○(9○7),用简便方法计算,在○里应填的运算符号是
[ ]
|
A.÷,× |
B.÷,+ |
|
C.×,- |
D.×,÷ |