脱式计算，能简算的要简算．0.89×4.8+0.89×5.29.4×0.96÷脱式计算，能简算的要简算．0.89×4.8+0.89×5.29.4×0.96÷（5.4÷0.9）（8+0.8）×1.250.175÷0.25÷0.4．

Question

脱式计算，能简算的要简算．0.89×4.8+0.89×5.29.4×0.96÷

脱式计算，能简算的要简算．
0.89×4.8+0.89×5.2
9.4×0.96÷（5.4÷0.9）
（8+0.8）×1.25
0.175÷0.25÷0.4．

Answer 1

（1）0.89×4.8+0.89×5.2
=0.89×（4.8+5.2）
=0.89×10
=8.9；

（2）9.4×0.96÷（5.4÷0.9）
=9.4×0.96÷6
=9.024÷6
=1.504；

（3）（8+0.8）×1.25
=8×1.25+0.8×1.25
=10+1
=11；

（4）0.175÷0.25÷0.4
=0.175÷（0.25×0.4）
=0.175÷0.1
=1.75．