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41. .InQteugaedrrsatic Equations e Leeleaar rnn. P.puunnj ajabb
version: 1.1
addition of integers.
• Multiplication of integers

(i) The product of two integers of like signs is a positive integer.
(ii) The product of two integers of unlike signs is a negative
integer.
• Division of integers
(i) If both the integers have like signs the quotient is positive.
(ii) If both the integers have unlike signs the quotient is
negative

REVIEW EXERCISE 4

1. Draw the number line to represent the following numbers.
(i) - 4 to 3 (ii) - 1 to +6 (iii) - 5 to +5

2. Write the numerical values of given integers.
(i) - 6 (ii) - 28 (iii) + 43

3. Arrange the given integers in descending order.
(i) -10, -1, +1, -6, 0 (ii) +3, -3, +4, -4, +2, -2

4. Prove that
(i) (+11) + (-6) = (-6) + (+11)

(ii) [(+1) x(-2)] x (-3) = (+1) x [(-2) x (-3)]
(iii) (-7) x (-8) = (-8) x (-7)

(iv) [(-24) + (-13)] + (+27) = (-24) + [(-13) + (+27)]

5. Fill in the boxes.
(i) (+ 43) - (-18) = (x) (ii) (x) - (+11) = (-31)
(iii) (- 52) - (x) = (-24) (iv) (+ 123) - (+87) = (x)

6. Simplify the following.
(i) (-182) ' (+ 14) (ii) (+345) ' (+23)

(iii) (+1221) ' (-111) (iv) (-4140) ' (345)

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