问题
解答题
4.23×7.12+42.3×0.398-0.432×11.
答案
4.23×7.12+42.3×0.398-0.432×11,
=4.23×7.12+4.23×3.98-4.32×1.1,
=4.23×(7.12+3.98-1.1),
=4.23×10,
=42.3.
4.23×7.12+42.3×0.398-0.432×11.
4.23×7.12+42.3×0.398-0.432×11,
=4.23×7.12+4.23×3.98-4.32×1.1,
=4.23×(7.12+3.98-1.1),
=4.23×10,
=42.3.