5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/18 14:16:53
5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)4.6X(5.8+2.4)

5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)
5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)

5.8×4.6+8.2×5.4+4.6×2.4=?(巧算)
4.6X(5.8+2.4)+8.2X5.4
=4.6X8.2+8.2X5.4
=8.2X(5.4+4.6)
=8.2X10
=82