试题:
直接写出得数:
0.63+0.37= 6.8-0.25= 6.4+3.6×2=
2.5×2.8×4= 36×20= 9.2÷0.01=
6.8-6.8×0.1= 21.3-3= 63+3.7-6.3+3.7=

答案:

我来补答
0.63+0.37=1, 6.8-0.25=6.55, 6.4+3.6×2=13.6,
2.5×2.8×4=28, 36×20=720, 9.2÷0.01=920,
6.8-6.8×0.1=6.12, 21.3-3=18.3, 63+3.7-6.3+3.7=64.1.
 
 
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