六十八点二乘以八分之七加三十点八除以七分之八加零点八七五

2024-11-23 03:21:46
推荐回答(3个)
回答1:

如图

回答2:

68.2×7/8+30.8÷8/7+0.875
=68.2×7/8+30.8×7/8+7/8
=(68.2+30.8+1)×7/8+
=100×7/8
=87.5

回答3: