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300-6930÷6312.5×1.6-13.61.85×310+710×1.85.

编辑:chaxungu时间:2026-04-27 13:21:13分类:小学数学题库

300-6930÷63
12.5×1.6-13.6
1.85×
3
10
+
7
10
×1.85.(1)300-6930÷63,
=300-110,
=190;

(2)12.5×1.6-13.6,
=20-13.6,
=6.4;

(3)1.85×
3
10
+
7
10
×1.85,
=1.85×(
3
10
+
7
10
),
=1.85×1,
=1.85.