问题
解答题
计算下面各题,能简算的要简算. 0.6×3.3+
(
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答案
(1)0.6×3.3+
3 |
5 |
=0.6×3.3+0.6×7.7-0.6,
=(3.3+7.7-1)×0.6,
=10×0.6,
=6;
(2)(
2 |
3 |
5 |
7 |
1 |
2 |
1 |
42 |
=(
2 |
3 |
5 |
7 |
1 |
2 |
=
2 |
3 |
5 |
7 |
1 |
2 |
=28+30-21,
=37;
(3)
9 |
10 |
5 |
9 |
1 |
2 |
1 |
6 |
=
9 |
10 |
5 |
9 |
1 |
2 |
1 |
6 |
=
1 |
2 |
1 |
2 |
1 |
6 |
=
1 |
2 |
1 |
3 |
=
1 |
6 |
(4)
8 |
27 |
1 |
3 |
1 |
4 |
=
8 |
27 |
1 |
12 |
=
8 |
27 |
2 |
3 |
=
8 |
27 |
3 |
2 |
=
4 |
9 |