题目内容
(2013?宜丰县模拟)直接写出得数.
0.8+99+0.8=
1÷5+
=
÷25%×
=
(
-
)×24=
5×
÷5×
=
0.8+99+0.8=
1÷5+
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 8 |
(
| 1 |
| 3 |
| 1 |
| 8 |
5×
| 4 |
| 5 |
| 4 |
| 5 |
分析:0.8+99+0.8运用加法交换律简算;
1÷5+
先算除法再算加法;
÷25%×
按照从左到右的顺序计算;
(
-
)×24运用乘法分配律简算;
5×
÷5×
先把除法变成乘法,再运用乘法结合律简算.
1÷5+
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 8 |
(
| 1 |
| 3 |
| 1 |
| 8 |
5×
| 4 |
| 5 |
| 4 |
| 5 |
解答:解:0.8+99+0.8=100.6,
1÷5+
=1,
÷25%×
=
,
(
-
)×24=5,
5×
÷5×
=
.
故答案为:100.6,1,
,5,
.
1÷5+
| 4 |
| 5 |
| 1 |
| 4 |
| 1 |
| 8 |
| 1 |
| 8 |
(
| 1 |
| 3 |
| 1 |
| 8 |
5×
| 4 |
| 5 |
| 4 |
| 5 |
| 16 |
| 25 |
故答案为:100.6,1,
| 1 |
| 8 |
| 16 |
| 25 |
点评:这类型的题目先观察算式,看能不能运用简便运算的方法简算,若不能就要按照运算顺序逐步运算.
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