Integers

Find the solution of the following additions using number line:

(a)(- 3) + 5

(B) (- 5) + (-2)

Determines:

(a) |5| – |- 3|

(b) |5 – 6|+ |-1|

(c) – 7 + |– 3|

(d) |5| + |– 12|

Ramesh thinks of an integer. He subtracts 12 from it and gets the result as – 6. What was the integer he thought of?

If * is an operation such that for two integers p and q, p * q = p + q – 2, then find:

(a) 6 * 2

(b) (- 2) * (- 3)

(c) (- 2) * (4)

(d) (+ 3) * (- 1)

The temperature on a certain morning is -11℃ at 5 a. m. If the temperature drops 3 degree at 6 a.m. and rises 5 degree at 8 a.m. and again drops 3 degree at 9 a.m. What is the temperature at 9 a.m.?

Find the value of:(-7) + (-9) + 4 + 16

Using number line, add the following integers: 9 + (-6).

Write all the integers between the following pair of integers:

(а) 0 and – 4

(B) – 5 and 5

(c) – 8 and – 13

(d) 3 and 6

Find the solution of the following:(-9) + (+13)

Comparing the following pairs of number use > or < .

Find the sum of the following integers:

(a) (- 8) + (+ 5) + (- 3) + (- 2)

(B) (- 7) + (- 9) + (+ 4) + (+ 3)

Write four negative integers less than -20.

Write all the integers between -8 and -15. (Write them in the increasing order.)

Subtract: (-20) - (-13)

What is the additive identity of – 20?

Represent the following on number line:

(a) -5

(b) 4

Identify the negative integers from the given numbers.

– 5, 3, 0, 5, – 6, 7, 3, 4, – 4, – 7

Write the following integers in their increasing order.

– 3, 0, – 6, 5, – 4, 6, 3, – 8