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Subjects
Mathematics State Board
Class 7
Number system
Addition of Integers and Properties of Addition
8.
State true or false
Exercise condition:
4
m.
1)
The value of
(
-28
)
+
(
-28
)
=
-56
is
True
False
.
2)
(
-28
)
+
0
=
-28
is
True
False
.
3)
(
17
+
23
)
+
22
=
17
+
(
25
+
22
)
is
True
False
.
4)
(
-28
)
+
17
=
17
+
(
-28
)
is
True
False
.
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