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直接写出得数.15×6=510-51=25×40=121+69=415+715=79-29=1-111=17+27+47=10+10÷2=120-39-21=96×23≈3105÷15≈

题目详情
直接写出得数.
15×6=

510-51=

25×40=
121+69=
4
15
+
7
15
=
7
9
-
2
9
=
1-
1
11
=
1
7
+
2
7
+
4
7
=
10+10÷2=
120-39-21=96×23≈3105÷15≈
直接写出得数.
15×6=

510-51=

25×40=
121+69=
4
15
+
7
15
=
7
9
-
2
9
=
1-
1
11
=
1
7
+
2
7
+
4
7
=
10+10÷2=
120-39-21=96×23≈3105÷15≈
直接写出得数.
15×6=
510-51=
25×40=直接写出得数.
15×6=

510-51=

25×40=
121+69=
4
15
+
7
15
=
7
9
-
2
9
=
121+69=
4
15
+
7
15
=
4
15
+
7
15
=
4
15
441515
7
15
=
7
15
771515
7
9
-
2
9
=
7
9
-
2
9
=
7
9
7799
2
9
=
2
9
22991-
1
11
=
1
7
+
2
7
+
4
7
=
10+10÷2=1-
1
11
=
1
11
=
1
11
111111
1
7
+
2
7
+
4
7
=
1
7
+
2
7
+
4
7
=
1
7
1177
2
7
+
4
7
=
2
7
2277
4
7
=
4
7
447710+10÷2=120-39-21=96×23≈3105÷15≈120-39-21=96×23≈3105÷15≈
▼优质解答
答案和解析
15×6=90
510-51=459

25×40=1000
121+69=190
4
15
+
7
15
=
11
15
7
9
-
2
9
=
5
9
1-
1
11
=
10
11
1
7
+
2
7
+
4
7
=1
10+10÷2=15
120-39-21=6096×23≈20003105÷15≈200
15×6=90
510-51=459
25×40=100015×6=9015×6=90
510-51=459
510-51=459
25×40=1000
25×40=1000121+69=190
4
15
+
7
15
=
11
15
7
9
-
2
9
=
5
9
121+69=190121+69=190
4
15
+
7
15
=
11
15
4
15
+
7
15
=
11
15
4
15
444151515+
7
15
=
11
15
7
15
777151515=
11
15
11
15
111111151515
7
9
-
2
9
=
5
9
7
9
-
2
9
=
5
9
7
9
777999-
2
9
=
5
9
2
9
222999=
5
9
5
9
5559991-
1
11
=
10
11
1
7
+
2
7
+
4
7
=1
10+10÷2=151-
1
11
=
10
11
1-
1
11
=
10
11
1
11
111111111=
10
11
10
11
101010111111
1
7
+
2
7
+
4
7
=1
1
7
+
2
7
+
4
7
=1
1
7
111777+
2
7
+
4
7
=1
2
7
222777+
4
7
=1
4
7
444777=110+10÷2=1510+10÷2=15120-39-21=6096×23≈20003105÷15≈200120-39-21=60120-39-21=6096×23≈200096×23≈20003105÷15≈2003105÷15≈200