题目内容
简算
×
+
÷
47×
0.375×(0.75+
+
)
×
×4.8×51.
5 |
9 |
7 |
12 |
13 |
9 |
12 |
7 |
47×
5 |
48 |
0.375×(0.75+
8 |
3 |
1 |
4 |
5 |
8 |
2 |
17 |
(1)
×
+
÷
=
×
+
×
,
=(
+
)×
=2×
,
=
;
(2)(48-1)×
=48×
-
,
=5-
,
=4
;
(3)0.375×(0.75+
+
)
=
×(
+
+
),
=
×(1+
),
=
×1+
×
,
=
+1,
=1
;
(4)
×
×4.8×51;
=(
×4.8)×(
×51),
=3×6,
=18.
5 |
9 |
7 |
12 |
13 |
9 |
12 |
7 |
=
5 |
9 |
7 |
12 |
13 |
9 |
7 |
12 |
=(
5 |
9 |
13 |
9 |
7 |
12 |
=2×
7 |
12 |
=
7 |
6 |
(2)(48-1)×
5 |
48 |
=48×
5 |
48 |
5 |
48 |
=5-
5 |
48 |
=4
43 |
48 |
(3)0.375×(0.75+
8 |
3 |
1 |
4 |
=
3 |
8 |
3 |
4 |
1 |
4 |
8 |
3 |
=
3 |
8 |
8 |
3 |
=
3 |
8 |
3 |
8 |
8 |
3 |
=
3 |
8 |
=1
3 |
8 |
(4)
5 |
8 |
2 |
17 |
=(
5 |
8 |
2 |
17 |
=3×6,
=18.
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