Page 61 - classs 6 a_Neat

EXAMPLE 44: (i) 27 > 18, and 9 is positive 7. Fill in the blanks.
a. 250 + = - 2
27 18
=> > b. -18 - = +2
9 9 c. - 41 + = +4
(ii) 27 > 18, and (-9) is negative d. 85 × = -85

27 18 e. -78 ÷ = 78
=> < 8.In a set of 30 multiple choice questions, 5 (five) marks are awarded for each cor rect answer, -3
-9 -9
(minus three) marks for every wrong answer and 0 (zero) for any question left unattempted. Raju
JUST TRY:1 Subtract 12 from -5. gets 9 answers correct, 15 answers wrong and leaves 6 questions unattempted. How much did Raju
JUST TRY:2 Subtract -from -12. score?
JUST TRY:3 Subtract 7 from -12. 9.What should be added to the sum of -25 and 20 to make it equal to the sum of 19 and 18?
JUST TRY:4 Subtract 5 from 12. 10. At 9 pm, the temperature at a place was 3°C. It fell by 4°C after six hours and remained constant for two
JUST TRY:5 Subtract (- 7) from 10. hours. Find the temperature at 4 am.
JUST TRY:6 (+7) × (+8) = 11.Which integer is equal to its additive inverse? What is the difference between the smallest positive integer
JUST TRY:7 (-7) × ( -8) = and the largest negative integer?
JUST TRY:8 (-10) × (+8) = 12. If the number of frves in 5 + (-5) + (5) + (-5) + 5 + (-5) + .... is 251, then the sum is zero. Is this statement
JUST TRY:9 (-10) × (+8) = true or false? Why?
JUST TRY:10 (+18) ÷ (+6) = 13. Simplify 272 × 42 + 272 × 50 + 272 × 8, by using the distributive property of multiplication.
JUST TRY:11 (-18) ÷ ( -6) = 14. Simplify 31170 × 641 - 31170 × 541, by using the distributive property of multiplication.
PRACTICE EXERCISE 4.2 15. Find the products by rearranging the numbers.
a. 1500 × 6 × 25 × 40
1. Represent the following numbers on a number line. b. 125 × 8 × 750 × 20
a. 4 more than (-6) b. 2 less than 6 c. 2 + 3 + (-5) 16. Arrange the following numbers using dots.
d. (-8) + (+8) e. 0 + (10) + (-10) a. 12 as a rectangular pattern.

b. 25 as a square pattern.
2. Find the successor of each of the following. c. 28 as a triangular pattern.
a.256 b.(-256) c. -1 17. Find the sum of the following numbers by suitable rearrangement.
d.89 e. (-89) a. 829 + 106 + 244 + 121
b. 222 + 333 + 667 + 778
3. Find the predecessor of each of the following. 18. Find the value of: 53 + (-42) - (-29) + (-11)
a.0 b. 42 c. (-42) 19. Find the value of: (-1001) - (-450) + (-750)
d.90 e. (-90) 20. A shopkeeper makes a profit of no by selling a pair of shoes and loses ₹15 on selling a pair of socks.
Find his profit or loss if he sells 3 pairs of shoes and 4 pairs of socks.
4. Add the following integers. 21. Raman has to reach the temple by climbing steps. He climbs 65 steps and then comes down 30 steps
a.78, -15 b. 48, 38 c. -32, 68 to drink water. He then climbs 70 steps. He drops his bag and comes down 3 steps. After climbing 6 steps he
d. -42, -35 e. 36, 32, -34 reaches the temple. Find out the total numbers of steps to the temple?
22. Subtract the sum of -1360 and 1258 from the sum of 1245 and -1425.
5. Subtract the following integers.
a. 64 from 46 b. -28from - 42 c. -18from 27
d. -45 from e. 53 from (-58)

6. Multiply the following integers.
a. (-18) × (-3) b. (24) × (6) c. 52 × (-5)
d. (-48) × 7 e. (-92) × (-1)

7. Divide the following integers.
(a) ( -64) ÷ ( - 8) (b) 84 ÷ 7 (c) (-55) ÷ 5
(d) 2010 ÷ (-10) (e) (-462) ÷ (-11)