4.98+8.02*3.5怎么简便运算_数学解答

4.98+8.02*3.5怎么简便运算

人气：205 ℃　时间：2020-04-17 21:40:35

解答

4.98+8.02×3.5
=5-0.02+（8+0.02）×3.5
=5-0.02+8×3.5+0.02×3.5
=5+28+0.02×（3.5-1）
=33+0.02×2.5
=33+0.05
=33.05