问题
解答题
80×1.6×2.5×1.25=______.
答案
80×1.6×2.5×1.25
=(80×1.25)×(1.6×2.5)
=100×(4×0.4×2.5)
=100×4
=400.
故答案为:400.
80×1.6×2.5×1.25=______.
80×1.6×2.5×1.25
=(80×1.25)×(1.6×2.5)
=100×(4×0.4×2.5)
=100×4
=400.
故答案为:400.