1.2×2.4的求近似值怎么做

2025-03-10 10:02:46
推荐回答(3个)
回答1:

1.2×2.4
=1×2.5+0.2×2.4
=2.5+0.48
=2.98
实际为2.88

回答2:

1.2*2.4
0.3*4*2.4
0.3*4*2.5
0.3*10
3

回答3:

1.2x2.4≈1.2x2.5=3