简便计算 0.77÷3.5= 和12.5×8÷12.5×8=
1个回答
0.77÷3.5
=0.11×7÷3.5
=0.11×2
=0.22
12.5×8÷12.5×8
=12.5÷12.5×8×8
=1×64
=64
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