问题
解答题
计算:
|
答案
,2×4.6×9+4×9.2×18 1×2.3×4.5+3×6.9×13.5
=
,2×(1×2.3×4.5)+4×(1×2.3×4.5) 1×2.3×4.5+3×(1×2.3×4.5)
=
,(2+4)×(1×2.3×4.5) (1+3)×(1×2.3×4.5)
=
.3 2
故答案为:
.3 2
计算:
|
,2×4.6×9+4×9.2×18 1×2.3×4.5+3×6.9×13.5
=
,2×(1×2.3×4.5)+4×(1×2.3×4.5) 1×2.3×4.5+3×(1×2.3×4.5)
=
,(2+4)×(1×2.3×4.5) (1+3)×(1×2.3×4.5)
=
.3 2
故答案为:
.3 2