Page 9 - Maths Skills - 7

1 1 Integers
Integers

Learning Outcomes

In this chapter, you will learn about:
� Integers � Subtraction of integers � Properties of multiplication of integers
� Representation of integers on a number line � Subtraction without using number lines � Division of integers
� Absolute value of integers � Properties of subtraction of integers � Properties of division of integers
� Addition of integers � Multiplication of integers � Order of operations and use of brackets
� Properties of addition of integers � Rules for multiplication of integers

Boot-Up (To Recapitulate Previous Knowledge of Concepts)

COMPETENCY BASED QUESTIONS

A. Multiple-Choice Questions
1. What do we get when we add – 6 to – 1?

(i) 5 (ii) – 5 (iii) 7 (iv) – 7
2. What will be the opposite of 4 km North?
(i) 4 km East (ii) 4 km South (iii) 4 km South East (iv) 4 km West

3. Which of the following set of numbers is in ascending order?
(i) 4, – 4, 2, – 1 (ii) – 1, 2, 3, 4 (iii) 6, 0, – 1, – 6 (iv) – 2 , – 1, 0, – 3

4. Which of the following statement is true?
(i) 4 subtracted from – 3 gives 1 (ii) – 3 subtracted from – 5 gives 6
(iii) 5 subtracted from – 8 gives – 13 (iv) 2 subtracted from – 7 gives – 6

B. Fill in the Blanks
1. The sum of two negative integers is always ________________ .
2. A positive integer is always ________________ than a negative integer.

3. Zero is always ________________ than a positive integer.
4. The integer succeeding – 9 is ________________ .

C. Write ‘T’ for true and ‘F’ for false Statements
1. On adding – 4 to – 1, we get 5.

2. The number – 9 lies on the left of 0 on the number line.

3. The absolute value of – 7 is – 7 only.

4. The sum of two positive integers can never be negative.