如题所述
2.4x12+0.48
=2.4x(10+2)+0.48
=2.4x10+2.4x2+0.48
=24+4.8+0.48
=28.8+0.48
=29.28
=2.4x(10+2)+0.48
=2.4x10+2.4x2+0.48
=24+4.8+0.48
=28.8+0.48
=29.28
温馨提示:答案为网友推荐,仅供参考
第1个回答 2020-04-02
解:=2.4×2×6+4.8×0.1
=4.8×(6+0.1)
=4.8×6.1
=29.28
=4.8×(6+0.1)
=4.8×6.1
=29.28