问题 解答题
直接写出得数.
2.7+1.8=6.43-0.3=0.85×2=8.4÷4=0.36+0.14=9÷0.01=
0.2×0.1=1-0.01=0.72÷0.9=0.12=0.7-0÷0.7=4×0.25+0.75=
答案

2.7+1.8=4.5,6.43-0.3=6.13,0.85×2=1.7,8.4÷4=2.1,0.36+0.14=0.5,9÷0.01=900,
0.2×0.1=0.02,1-0.01=0.91,0.72÷0.9=0.8,0.12=0.01,0.7-0÷0.7=0.7,4×0.25+0.75=1.75.

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