题目内容

计算,能简算的要简算.
①36×101

②239×7.2+956×8.2
③24×(
1
4
+
1
6
+
1
12
④3.7×0.58+6.3×0.58.
①36×101,
=36×(100+1),
=36×100+36×1,
=3600+36,
=3636;

②239×7.2+956×8.2,
=239×7.2+239×32.8,
=239+(7.2+32.8),
=239×40,
=9560;

③24×(
1
4
+
1
6
+
1
12
),
=24×
1
4
+24×
1
6
+24×
1
12

=6+4+2,
=12;

④3.7×0.58+6.3×0.58.
=(3.7+6.3)×0.58,
=10×0.58,
=5.8.
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