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计算:24×5-3535÷35, 1.7+5.02+3.98, 815÷16+615×7.

编辑:chaxungu时间:2026-04-27 13:18:54分类:小学数学题库

计算:
24×5-3535÷35;
1.7+5.02+3.98;
8
15
÷
1
6
+
6
15
×7.(1)24×5-3535÷35,
=120-101,
=19;

(2)1.7+5.02+3.98,
=1.7+(5.02+3.98),
=1.7+9,
=10.7;

(3)
8
15
÷
1
6
+
6
15
×7
=
8
15
×6+
7
15
×6,
=(
8
15
+
7
15
)×6,
=1×6,
=6.