4.3×1.02简便运算

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/01 03:49:22

4.3×1.02简便运算

原式
=4.3×(1+0.02)
=4.3×1+4.3×0.02
=4.3+0.086
=4.386

4.3×1.02
=4.3×(1+0.02)
=4.3×1+4.3×0.02
=4.3+0.086
=4.386.

4.3×1.02
=(4+0.3)×1.02=4.08+0.306=4.386