Question

计算下面各题能简算的要简算8.45-0.45*0.1

Answer 1

（1）21.8-7.22-2.78
=21.8-（7.22+2.78）
=21.8-10
=11.8
　
（2）9-0.24÷1.6×1.1
=9-0.15×1.1
=9-0.165
=8.835

（袜渣庆3）9.12+9.12×9-6.02
=9.12×（1+9）-6.02
=9.12×10-6.02
=91.2-6.02
=85.18
　
（4）45.2×66.7+66.7×53.8+66.7
=（45.2+53.8+1）×66.7
=100×66.7
=6670

（5）0.25×0.8×0.125×0.4
=（0.25×0.4）×（0.8×0.125）
=0.1×0.1
=0.01

（6）告握12.75÷[14.6-（1.3+8.2）梁派]
=12.75÷[14.6-9.5]
=12.75÷5.1
=2.5

Answer 2

8.45-0.45*0.1
=8.45-0.045
=8.405

Answer 3

8.45-0.45×0.1
=8.45-0.045
=8.405