INTEGERS
1.
In each of the following pairs, which number is
to the right of the order on the number line?
i.
5,9 ii. -4,-6 iii. 0,-3 iv. -7,7
2.
Write the following integers in ascending order:
i.
7,12,-14,-12,0,3,-1 ii. -15,17,-235,-325,104 iii. -27,19,0,-11,-33,-2
3.
Write the absolute value of each of the
following
i.
-19 ii.
23 iii. 0 iv. -211 v.
1021 vi. -53
4.
Evaluate the following:
i.
|-13| + |-5| ii. |-7| - |3| iii. |-11|
- |-14| iv. |10| - |9|
5.
Write the additive inverse of the following:
i.
-13 ii. -2012
6.
Add the integers in each of the following:
i.
124,-8 ii. 51,-63 iii. -6290,-2110
7. Find the predecessor of each of the following:
i.
0 ii. -121 iii. -1
8.
Simplify:
i.
23 + (-17) + (-11) + 16 ii. (-230)
+ 109 + (-10) + 210 + -(2)
9. Find an integer a such that:
i.
-5 + a = 0 ii. a + (-15) = 0
10.
A car travelled 90km to the north and then 52km
to the south. How far from the initial position was the car finally?
11.
Evaluate the following
i.
-576 – (-425) ii. 380 – (-120) – (-65)
12.
Subtract the number which is successor of -27
from the number which is predecessor of -39.
13.
What must be added to:
i.
-72 to get 45 ii. -37 to get -19
14.
Find an integer a such that
i.
a + 9 = 0 ii. 3 + a = 0
15.
From the sum of -5376 and 3744, subtract the sum
of-2150 and 1125.
16.
The sum of two integers is -23. If one of the
integers is 145, find the other.
17.
The sum of two integers is 79. If one of the
integers is -43 find the other.
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