问题 解答题
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.
答案

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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