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Pre-Algebra Examples
Popular Problems
Pre-Algebra
Add 4 5 7 8 2 5 9 7 8
4
4
5
5
7
7
8
8
2
2
5
5
9
9
7
7
8
8
Step 1
Add the
expressions
.
4
+
5
+
7
+
8
+
2
+
5
+
9
+
7
+
8
4
+
5
+
7
+
8
+
2
+
5
+
9
+
7
+
8
Step 2
Add
4
4
and
5
5
.
9
+
7
+
8
+
2
+
5
+
9
+
7
+
8
9
+
7
+
8
+
2
+
5
+
9
+
7
+
8
Step 3
Add
9
9
and
7
7
.
16
+
8
+
2
+
5
+
9
+
7
+
8
16
+
8
+
2
+
5
+
9
+
7
+
8
Step 4
Add
16
16
and
8
8
.
24
+
2
+
5
+
9
+
7
+
8
24
+
2
+
5
+
9
+
7
+
8
Step 5
Add
24
24
and
2
2
.
26
+
5
+
9
+
7
+
8
26
+
5
+
9
+
7
+
8
Step 6
Add
26
26
and
5
5
.
31
+
9
+
7
+
8
31
+
9
+
7
+
8
Step 7
Add
31
31
and
9
9
.
40
+
7
+
8
40
+
7
+
8
Step 8
Add
40
40
and
7
7
.
47
+
8
47
+
8
Step 9
Add
47
47
and
8
8
.
55
55
4
5
7
8
2
5
9
7
8
4
5
7
8
2
5
9
7
8
(
(
)
)
|
|
[
[
]
]
√
√
≥
≥
π
π
7
7
8
8
9
9
≤
≤
4
4
5
5
6
6
/
/
^
^
×
×
>
>
!
!
1
1
2
2
3
3
-
-
+
+
÷
÷
<
<
,
,
0
0
.
.
%
%
=
=
⎡
⎢
⎣
x
2
1
2
√
π
∫
x
d
x
⎤
⎥
⎦
[
x
2
1
2
π
∫
x
d
x
]
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