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脱式计算.①14.8-44.08÷5.8②7.5×23+7.5÷34③14+37+47÷4④3.35×6.4×2+6.7×3.6.

编辑:chaxungu时间:2026-04-27 13:18:50分类:小学数学题库

脱式计算.(能简算的要简算)
①14.8-44.08÷5.8
②7.5×
2
3
+7.5÷
3
4

③
1
4
+
3
7
+
4
7
÷4
④3.35×6.4×2+6.7×3.6.①14.8-44.08÷5.8,
=14.8-7.6,
=7.2;

②7.5×
2
3
+7.5÷
3
4
,
=7.5×
2
3
+7.5×
4
3
,
=7.5×(
2
3
+
4
3
),
=7.5×2,
=15;

③
1
4
+
3
7
+
4
7
÷4,
=
1
4
+
3
7
+
4
7
×
1
4
,
=
1
4
+
3
7
+
1
7
,
=
1
4
+(
3
7
+
1
7
),
=
1
4
+
4
7
,
=
23
28
;

④3.35×6.4×2+6.7×3.6,
=(3.35×2)×6.4+6.7×3.6,
=6.7×6.4+6.7×3.6,
=6.7×(6.4+3.6),
=6.7×10,
=67.