Question

4.3x67+57x4.3-86x1.2,怎么简便计算？

Answer 1

4.3×67+57×4.3-86×1.2
=4.3×67+4.3×57-4.3×24
=4.3×(67+57-24)
=4.3×100
=430

Answer 2

4.3×67+57×4.3-86×1.2
=4.3×67+57×4.3-4.3×20×1.2
=4.3×（67+57-24）
=4.3×（124-24）
=4.3×100
=430

Answer 3

4.3×67+57×4.3-86×1.2
=4.3×67+4.3×57-43×2×1.2
=4.3×67+4.3×57-4.3×24
=4.3×(67+57-24)
=4.3×100
=430

Answer 4

4.3×67+57×4.3-86×1.2
=4.3×67+57×4.3-4.3×20×1.2
=4.3×(67+57-20×1.2)
=4.3×(67+57-24)
=4.3×100
=430

Answer 5

4.3×67+57×4.3-86×1.2
=4.3×（67+57-24）
=4.3×100
=430