Question

128×6+6×72用最简便的方法计算

Answer 1

128×6+6×72
=6×(128+72)
=6×200
=1200

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Answer 2

128×6+6×72
=(128+72)×6
=200×6
=1200

Answer 3

128×6+6×72
=(128+72)x6
=200x6=1200

Answer 4

128x6+6x72=6x(200)=1200