87乘23约等于多少?

2025-01-26 17:53:02
推荐回答(3个)
回答1:

解: 87x23
=16 (24+14) 21
=16 38 21
=16 40 01
=2001
≈2000

回答2:

1800,90*20

回答3:

87×23≈90×20=1800