5.4×7.8+2.7×4.4怎么简算呀!急
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 20:08:42
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5.4×7.8+2.7×4.4怎么简算呀!急
5.4×7.8+2.7×4.4怎么简算呀!
急
5.4×7.8+2.7×4.4怎么简算呀!急
5.4×7.8+2.7×4.4
=2.7( 2x7.8 +4.4)
=2.7( 15.6+4.4)
=2.7x20
=54
5.4×7.8+2.7×4.4
=2.7×(7.8×2)+2.7×4.4
=2.7×15.6+2.7×4.4
=2.7×(15.6+4.4)
=2.7×20
=54