Maths 1 Mark Question

51 > 0 > -2 > -8 > -53

-135 from -250
= -250 - (-135)
= -250 + 135
= -115

0 + 0 = 0
So, the additive inverse of 0 is 0.

1056 + (-798) + (-38) + 44 + (-1)
= 1056 + 44 – (798 + 38 + 1)
= 1100 – 837
= -263

5 + a = 0
⇒ a = 0 - 5

(-36) × (72) + (-36) × 28
= (-2592) + (-1008)
= -2592 - 1008
= -3600

8

= -8 - (-68) + (-36)
= -8 + 68 - 36
= 68 - (8 + 36)
= 68 - 44
= 24

The smallest positive integer is 1.Solution:

-2768 from -287
= -287 - (-2768)
= -287 + 2768
= 2481

-92 from 0
= 0 - (-92)
= 0 + 92
= 92

(-5) + (-6)
= -5 - 6
= -11

(-51) + (-203) + 36 + (-28)
= -51 – 203 + 36 – 28
= -282 + 36
= -246

Spending rupees 500

Going 6m to the west

0

(-8) × (-63) × 9
= (-8) × (-567)
= 4536

-57 by 0
= -57 × 0
= 0

-27 < -13
Since 27 is greater than 13, -27 is smaller than -13.

-28 from -43
= -43 - (-28)
= -43 + 28
= -15

-4, -6
-4
Since 6 is greater than 4, -4 is greater than -6.

0 by -31
= 0 × (-31)
= 0

-1001 + 1001 = 0
So, the additive inverse of -1001 is 1001.

-3012 from 6250
= 6250 - (-3012)
= 6250 + 3012
= 9262

(-125) ÷ (-5) = 25Solution:
= 25 × -5 = -125

413 > 102 > -7 > -365 > -515

-18 by 13
= (-18) × 13
= -234

3002 + (-888)
= 3002 – 888
= 2114

An decrease of 8

-106 < -81 < -16 < -2 < 0 < 16 < 21

8 + (-16)
= 8 - 16
= -8

The successor of -99:
-99 + 1 = -98

-100 < -23 < -6 < -1 < 0 < 12

-3km

|7 - 4|
= |3| (The value of |3| is 3)
= 3

-746 by -8
= (-746) × (-8)
= 5968

The successor of 201:
201 + 1 = 202

57 + 57 = 0
So, the additive inverse of -57 is 57.

Four integers less than -6 (i.e. four negative integers that lie to the left of -6) are -7, -8, -9 and -10.
Four integers greater than -6 (i.e. four negative integers that lie to the right of -6 ) are -5, -4, -3 and -2.

(-312) + 39 + 192
= -312 + 39 + 192
= -312 + 231
= -81

8 × 7 × (-10)
= 56 × (-10)
= -560

1 ÷ (-1) = -1Solution:
= -1 × 1 = -1

0, -3
0
This is because 0 is greater than any negative integer.

137 + (-354)
= 137 - 354
= -217

1, 2, 3, 4, 5

(-36) + 1027
= -36 + 1027
= 991

68 from -37
= -37 - 68
= -105

The predecessor of 120:
120 - 1 = 119

+Rs. 600

The value of |-36| is 36

36 > 0 > -5 > -71 > -81

A gain of rupees 7

6 + |-4|
= 6 + (4)
= 6 + 4
= 10

32 by -21
= 32 × (-21)
= -672

(-8) + (-6) - (-3) = -11.Solution:
(-8) + (-6) - (-3) = (-8) + (-6) + 3 = -8 - 6 + 3 = -11

5 - 6 = -1

(-51) × (-47) × (-19)
= (-51) × 893
= -45543

2 - 6 = 4

-99, 9
9
This is because every positive integer is greater than any negative integer.

-7 < 6
This is because every positive integer is greater than every negative integer.

The value of |-9| is 9

-6, -5, -4, -3, -2

-21, -22, -23, -24, -25

-Rs. 800

-365

(-18) + 25 + (-37)
= -18 + 25 – 37
= -55 + 25
= -30

The predecessor of 79:
79 – 1 = 78

(-6) × (-8)
= (6 × 8)
= 48

-501 < -363 < -17 < 15 < 165

(-36) + 100
= -36 + 100
= 64

219 from 0
= 0 - 219
= -219

True.

(-8) × 3 × 5
= (-8) × 15
= -120

The successor of -500:
-500 + 1 = -499

(-8) × (-3) × (-9)
= (-8) × 27
= -216

2054 – 2054 = 0
So, the additive inverse of 2054 is -2054.

8 × (-5)
= -(8 × 5)
= -40

-7 < -2 < 0 < 5 < 8

The predecessor of -141:
-141 – 1 = -142

29 by -11
= 29 × (-11)
= -319

10km below sea level

-1 < 0
This is because zero is greater than every negative integer.

6240 from -271
= -271 - 6240
= -6511

(-3057) + 199
-3057 + 199
= -2858

777 < 7
This is because every positive integer is greater than every negative integer.

(0) ÷ 372 = 0Solution:
= 372 × 0= 0

-23 - (38) = 15Solution:
Let the required number be x -23 - x = 15 ⇒ -23 = 15 + x ⇒ 15 + x = -23 ⇒ x = -15 - 23 ⇒ x = -38

The successor of 70:
70 + 1 = 71

36 > 7 > 0 > -3 > -9 > -132

-238 by -143
= (-238) × (-143)
= 34034

-2, -1, 0, 1, 2

The successor of -5:
-5 + 1 = -4

-15 from 225
= 25 - (-15)
= 25 + 15
= 40

4 + 6 = 10

-26 < 17
This is because every positive integer is greater than every negative integer.

The value of |0| is 0

The largest negative integer is -1.Solution:

37 + (-23) + (-65) + 9 + (-12)
= 37 + 9 – (23 + 65 + 12)
= 46 – 100
= -54

-6

+2km

(-2) × 3 × (-4)
= -6 × (-4)
= 24

-8 – |-3|
= -8 - 3
= -11

Solution is as follow:

(-7) + (-9) + 12 + (-16)
= 12 – (7 + 9 + 16)
= 12 – 32
= -20

118 by -7
= 118 × (-7)
= -826

The predecessor of -300:
-300 – 1 = -301

-4, -3, -2, -1

15 by 9
= 15 × 9
= 135

(-3) × (-7) × (-6)
= (-3) × 42
= -246

8 - |-7|
= 8 - 7 (The value of |-7| is 7
= 1

18 from -34
= -34 - 18
= -52

(-17) × (-23) × 41
= (-17) × (-943)
= 16031

2

-12 by -9
= (-12) × (-9)
= 108

30 - (-50)
= 30 + 50
= 80

-3

18 × (-27) × 30
= 18 × (-810)
= -14580

The predecessor of -8:
-8 – 1 = -9

(-145) + 79 + (-265) + (-41) + 2
= 79 + 2 – (145 + 256 + 41)
= 81 – 451
= -370

Losing a weight of 5kg

183 – 183 = 0
So, the additive inverse of 183 is -183.

+Rs. 200

-Rs. 300

8

-385, -615
-385
Since 615 is greater than 385, -385 is greater than -615.

True.

a + (-4) = 0
⇒ a = 0 - (-4)
⇒ a = 4

+34

The numbers -4, -3, -2, -1, 0, 1, 2, 3, 4 are integers.
The group of positive and negative numbers including 0 is called integers.
-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5

9 - |-6|
= 9 - (6)
= 9 - 6
= 3

The value of |15| is 15

(-389) + (-1032)= -389 – 1032
= -1421

-8 + a = 0
⇒ a = 0 + 8
⇒ a = 8

-24

7 + |-3|
= 7 + 3 (The value of |-3| is 3)
= 10

-56 by 16
= (-56) × 16
= -896

We can arrange the given integers in the increasing order in the following manner:
-36, -18, -5, -1, 0, 1, 8, 16

False.Solution:
It can be negative or positive. For example: -2 + 3 = 1 gives a positive integer, but -5 + 2 = -3 gives a negative integer.

-9

18 by -7
= 18 × (-7)
= -126

-3 - 2 = -5

a + 6 = 0
⇒ a = 0 - 6
⇒ a = -6

-603 < -317
Since 603 is greater than 317, -603 is smaller than -317.

(-186) ÷ 1 = -186Solution:
= -186 × 1 = -186

(-30) - 15
= -30 - 15
= -45

1001 + (-13)
= 1001 - 13
= 988

2 × (-5) × (-6)
= 2 × 30
= 60

A withdrawal of rupees 100