题目内容
根据35×100=3500,你能计算出35×102,35×99的积吗?
35×102
=35×
=
35×99
=35×
=
35×102
=35×
100
100
+35×2
2
=
3570
3570
35×99
=35×
100
100
-35×1
1
=
3465
3465
.分析:运用乘法分配律即可解答.
解答:解:35×102,
=35×100+35×2,
=3500+70,
=3570;
35×99,
=35×100-35×1,
=3500-35,
=3465;
故答案为:100,2,3570,100,1,3465.
=35×100+35×2,
=3500+70,
=3570;
35×99,
=35×100-35×1,
=3500-35,
=3465;
故答案为:100,2,3570,100,1,3465.
点评:本题主要考查学生运用乘法分配律解决问题的能力.

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