题目内容
能简算的要简算
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(
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(
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99×
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(1)
10 |
11 |
1 |
13 |
=(
10 |
11 |
1 |
13 |
=10×1,
=10;
(2)(
4 |
5 |
3 |
10 |
10 |
3 |
=
4 |
5 |
10 |
3 |
3 |
10 |
10 |
3 |
=
8 |
3 |
=
11 |
3 |
(3)
13 |
49 |
13 |
49 |
=
13 |
49 |
=
13 |
49 |
=13;
(4)
4 |
5 |
4 |
5 |
5 |
6 |
=
4 |
5 |
5 |
6 |
=
4 |
5 |
1 |
6 |
=
2 |
15 |
(5)(
3 |
4 |
5 |
8 |
=
3 |
4 |
5 |
8 |
=24+20,
=44;
(6)99×
5 |
98 |
=(98+1)×
5 |
98 |
=98×
5 |
98 |
5 |
98 |
=5+
5 |
98 |
=5
5 |
98 |
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