8.9x9十0.178十89xO.o98怎样简便计算?

2024-12-03 14:40:55
推荐回答(2个)
回答1:

8.9x9十0.178十89xO.o98怎样简便计算?

8.9×9十0.178十89×O.098
=8.9×9十8.9×0.02十8.9×0.98
=8.9×(9十0.02十0.98)
=8.9×10
=89

回答2:

8.9X9十0.178十89x0.098
=8.9x(9+0.02+0.98)
=8.9×10
=89