17x29十70x70x17十17简算

2024-11-19 10:28:02
推荐回答(2个)
回答1:

17*(29+4900+1)
= 17*4930
= 17*5000 - 17*70
= 85000 - 1190
= 83810

回答2:

17x(29+4900+1)=17x4930=83810