A.可能偏大 | B.可能偏小 | C.可能偏大,也可能偏小 |
A.①和② | B.②和③ | C.③和④ | D.①和③ |
A.商5余3 | B.商50余3 | C.商5余30 | D.商50余30 |
A.700÷200=7÷2=3(个)……1(个) | B.700÷200=3……100 |
C.70÷20=3……10 | D.7÷2=3……1 |
A.31÷30 |
B.310÷30 |
C.310÷3 |
A.20 | B.0.29 | C.5.8 | D.116 |
A.6 | B.9 | C.7 | D.8 |
A.60 | B.600 | C.6000 | D.360 |
A.2.8÷0.1 | B.2.8÷0.001 | C.2.8÷0.01 | D.2.8÷1 |
A.增加100 | B.扩大100倍 | C.减少100 | D.缩小100倍 |