怎样算简便就怎样算.(12%)17.17-6.8-3.2-6.17 5.4×[(1.3+2.15)÷0.2] 8.4÷0.6+8.4÷0.4 16.8

2024-12-18 01:26:11
推荐回答(1个)
回答1:

(1)17.17-6.8-3.2-6.17
=(17.17-6.17)-(6.8+3.2),
=11-10,
=1;
(2)5.4×[(1.3+2.15)÷0.2]
=5.4×[3.45÷0.2],
=5.4×17.25,
=93.15;
(3)8.4÷0.6+8.4÷0.4
=14+21
=35;
(4)16.8×10.1
=16.8×10+16.8×0.1,
=168+1.68,
=169.68;
(5)10.9-0.9÷0.2+1.8
=10.9-4.5+1.8,
=8.2;
(6)1.25×3.2×0.25
=(1.25×0.8)×(4×0.25),
=1×1,
=1.