1.02×2.54+0.98×0.5简便运算

1.02×2.54+0.98×0.5简便运算
2025-06-28 00:55:10
推荐回答(1个)
回答1:

1.02×2.54+0.98×0.5
=1.02×2.04+1.02×0.5+0.98×0.5
=1×2.04+0.02×2.04+2×0.5
=2.04+0.0408+1
=2.0808+1
=3.0808