直接寫出下面各題的得數(shù).
0.5+0.4= | 7.6+0.3= | 0.8-0.1= | 2.3+4.5= |
5.3+1.6= | 4.9-2.5= | 7.3+2.6= | 5.9-3.2= |
1-0.5= | 4.2+2.6= | 8.7-3.5= | 3.6+5.2= |
解:
0.5+0.4=0.9; | 7.6+0.3=7.9; | 0.8-0.1=0.7; | 2.3+4.5=6.8; |
5.3+1.6=6.9; | 4.9-2.5=2.4; | 7.3+2.6=9.9; | 5.9-3.2=2.7; |
1-0.5=0.5; | 4.2+2.6=6.8; | 8.7-3.5=5.2; | 3.6+5.2=8.8. |
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