估算
2804
÷41≈[
]|
A .7 |
B .60 |
|
C .68 |
D .70 |
估算
2433
÷32≈[
]|
A .70 |
B .80 |
|
C .60 |
D .75 |
估算
6425
÷76≈[
]|
A .80 |
B .90 |
|
C .8 |
D .9 |
估算
8816
÷37≈[
]|
A .2 |
B .22 |
|
C .20 |
D .220 |
估算
3044
÷48≈[
]|
A .70 |
B .6 |
|
C .60 |
D .7 |
用计算器计算.
45720
-483×52=[
]|
A .45237 |
B .25116 |
|
C .20604 |
D .20640 |
用计算器计算.
(
3687+1666)÷53=[
]|
A .101 |
B .5353 |
|
C .110 |
D .100 |
用计算器计算.
5940
÷45×73=[
]|
A .132 |
B .3285 |
|
C .9663 |
D .9636 |
估算
1435
÷7≈[
]|
A .200 |
B .300 |
|
C .215 |
D .230 |
估算
798
÷4≈[
]|
A .175 |
B .190 |
|
C .199 |
D .200 |