Question

5.6×69.32+138.64×0.05+693.2×0.43=？？用简便方法

Answer 1

5.6×69.32+138.64×0.05+693.2×0.43
=5.6x69.32+69.32x0.1+69.32x4.3
=69.32x（5.6+0.1+4.3）
=69.32x10
=693.2
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Answer 2

5.6×69.32+138.64×0.05+693.2×0.43
=5.6×69.32+69.32×0.1+69.32×4.3
=69.32x(5.6+0.1+4.3)
=69.32x10
=693.2

Answer 3

=5.6x69.32+69.32x4.3+138.64x0.05
=69.32x(5.6+4.3)+138.64x0.05
=69.32x9.9+6.932
=69.32x9.9+69.32x0.1
=69.32x(9.9+0.1)
=693.2

Answer 4

Answer 5

5.6×69.32+138.64×0.05+693.2×0.43
=69.32×(5.6+0.1+4.3)
=69.32×10
=693.2