Question

4.6×1.5-0.06×25怎么简便计算？

Answer 1

4.6×1.5-0.06×25

＝4.6×5×0.3-0.06×5×5

＝1.38×5-0.3×5

＝（1.38-0.3）×5

＝1.08×5

＝5.4

Answer 2

4.6×1.5-0.06×25
=4.6×0.3×5-0.06×5×5
=4.6×0.3×5-0.3×5
=0.3×5×（4.6-1）
=0.3×5×3.6
=0.3×5×0.4×9
=2.7×2
=5.4
拆分法和乘法分配律的逆运算

Answer 3

4.6×1.5-0.06×25
【提取公因数5】
=5x(4.6x0.3-0.06x5)
=5x(1.38-0.3)
=5x1.08
=5.4

Answer 4

4.6×1.5－0.06×25
＝4.6×1.5－1.5
＝1.5×（4.6－1）
＝1.5×3.6
＝（1+0.5）×3.6
＝3.6+1.8
＝5.4

Answer 5

4.6×1.5－0.06×25
=（5－0.4）×1.5－0.06×25
=5×1.5－0.4×1.5－0.06×25
=7.5－0.6－1.5
=6－0.6
=5.4