问题
解答题
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答案
30×40=120, | 50×70=3500, | 14×20=280, | 22×40=880, |
200÷4=50, | 360÷6=60, | 480÷2=240, | 770÷7=110, |
0.4+0.3=0.7, | 1-0.8=0.2, | 1.2-0.2=1, | 5.3+4.2=9.5. |
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30×40=120, | 50×70=3500, | 14×20=280, | 22×40=880, |
200÷4=50, | 360÷6=60, | 480÷2=240, | 770÷7=110, |
0.4+0.3=0.7, | 1-0.8=0.2, | 1.2-0.2=1, | 5.3+4.2=9.5. |