Question

8.2×4.7+5.6×4.7简便计算。

Answer 1

8.2×4.7+5.6×4.7
=（8.2+5.6）x4.7
=13.8x(5-0.3)
=13.8x5-13.8x0.3
=69-4.14
=64.86

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Answer 2

＝（8.2＋5.6)×4.7
＝13.8×4.7
＝64.86

追答

8.2×4.7+5.6×4.7
=（8.2+5.6）x4.7
=13.8x(5-0.3)
=13.8x5-13.8x0.3
=69-4.14
=64.86

8.2×4.7+5.6×4.7
=（8.2+5.6）x（5－0.3）
=13.8x(5-0.3)
=13.8x5-13.8x0.3
=69-4.14
=64.86

Answer 3

8.2*4.7+5.6*4.7=
（8.2+5.6）*4.7=
10.8*4.7=
50.76

Answer 4

（8.2 + 5.6）x 4.7
= 13.8 x 4.7
=64.86

Answer 5

=4.7*（8.2+5.6）
=4.7*13.8
=4..7*(10+4-0.2)
=47+18.8-0.94
=64.86