题目内容

计算下面各题,能简算的要简算.
8
17
÷23+
1
23
×
9
17
0.25×1.25×323.6-2.8+7.4-7.2 41×101.
8
17
÷23+
1
23
×
9
17

=
8
17
×
1
23
+
1
23
×
9
17

=(
8
17
+
9
17
)×
1
23

=
1
23

=
1
23


②0.25×1.25×32,
=0.25×1.25×8×4,
=(0.25×4)×(1.25×8),
=1×10,
=10;

③3.6-2.8+7.4-7.2,
=3.6+7.4-(2.8+7.2),
=11-10,
=1;

④41×101,
=41×(100+1),
=41×100+41×1,
=4100+41,
=4141.
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