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直接写出下面各题的得数.325+464=460+250=480-90=2600-2000=305+103≈302×3≈78×4≈56÷7=810-510=78-48=25+15=1-37=

题目详情
直接写出下面各题的得数.
325+464=460+250=480-90=2600-2000=
305+103≈302×3≈78×4≈56÷7=
8
10
-
5
10
=
7
8
-
4
8
=
2
5
+
1
5
=
1-
3
7
=
直接写出下面各题的得数.
325+464=460+250=480-90=2600-2000=
305+103≈302×3≈78×4≈56÷7=
8
10
-
5
10
=
7
8
-
4
8
=
2
5
+
1
5
=
1-
3
7
=
325+464=460+250=480-90=2600-2000=
305+103≈302×3≈78×4≈56÷7=
8
10
-
5
10
=
7
8
-
4
8
=
2
5
+
1
5
=
1-
3
7
=
325+464=460+250=480-90=2600-2000=305+103≈302×3≈78×4≈56÷7=
8
10
-
5
10
=
7
8
-
4
8
=
2
5
+
1
5
=
1-
3
7
=
325+464=460+250=480-90=2600-2000=325+464=460+250=480-90=2600-2000=305+103≈302×3≈78×4≈56÷7=305+103≈302×3≈78×4≈56÷7=
8
10
-
5
10
=
7
8
-
4
8
=
2
5
+
1
5
=
1-
3
7
=
8
10
-
5
10
=
8
10
-
5
10
=
8
10
810881010
5
10
=
5
10
510551010
7
8
-
4
8
=
7
8
-
4
8
=
7
8
787788
4
8
=
4
8
484488
2
5
+
1
5
=
2
5
+
1
5
=
2
5
252255
1
5
=
1
5
1511551-
3
7
=
3
7
=
3
7
373377
▼优质解答
答案和解析
325+464=789460+250=710480-90=3902600-2000=600
305+103≈400302×3≈90078×4≈32056÷7=8
8
10
-
5
10
=
3
10
7
8
-
4
8
=
3
8
2
5
+
1
5
=
3
5
1-
3
7
=
4
7
325+464=789460+250=710480-90=3902600-2000=600305+103≈400302×3≈90078×4≈32056÷7=8
8
10
-
5
10
=
3
10
7
8
-
4
8
=
3
8
2
5
+
1
5
=
3
5
1-
3
7
=
4
7
325+464=789460+250=710480-90=3902600-2000=600325+464=789325+464=789460+250=710460+250=710480-90=390480-90=3902600-2000=6002600-2000=600305+103≈400302×3≈90078×4≈32056÷7=8305+103≈400305+103≈400302×3≈900302×3≈90078×4≈32078×4≈32056÷7=856÷7=8
8
10
-
5
10
=
3
10
7
8
-
4
8
=
3
8
2
5
+
1
5
=
3
5
1-
3
7
=
4
7
8
10
-
5
10
=
3
10
8
10
-
5
10
=
3
10
8
10
810888101010-
5
10
=
3
10
5
10
510555101010=
3
10
3
10
310333101010
7
8
-
4
8
=
3
8
7
8
-
4
8
=
3
8
7
8
78777888-
4
8
=
3
8
4
8
48444888=
3
8
3
8
38333888
2
5
+
1
5
=
3
5
2
5
+
1
5
=
3
5
2
5
25222555+
1
5
=
3
5
1
5
15111555=
3
5
3
5
353335551-
3
7
=
4
7
1-
3
7
=
4
7
3
7
37333777=
4
7
4
7
47444777