|
In a class test (+3) marks are given for every correct answer and (- 2) marks
|
|
2
|
8109
|
October 1, 2020
|
|
On a number line, when we subtract a positive integer, we
|
|
1
|
665
|
April 8, 2019
|
|
On a number line, when we add a negative integer, we
|
|
1
|
982
|
April 8, 2019
|
|
On a number line, when we add a positive integer, we
|
|
1
|
818
|
April 8, 2019
|
|
An elevator descends into a mine shaft at the rate of 6m/min
|
|
1
|
2301
|
April 8, 2019
|
|
The temperature at 12 noon was 10°C above zero. If it decreases
|
|
1
|
8021
|
April 8, 2019
|
|
Write five pairs of integers (a, b) such that a + b = -3. One such pair is (6, -2) because 6 +(-2) = (-3)
|
|
1
|
2102
|
April 8, 2019
|
|
Fill in the blanks: (a) 369 ÷ …….. = 369
|
|
1
|
2144
|
April 8, 2019
|
|
Verify that a + (b + c) ≠ (a + b) + (a ÷ c)
|
|
1
|
496
|
April 8, 2019
|
|
Evaluate each of the following: (a) (-30)+ 10
|
|
1
|
2915
|
April 8, 2019
|
|
Replace the blank with an integer to make it a true statement. (a) (- 3) × …….. = 27
|
|
1
|
1223
|
April 8, 2019
|
|
A cement company earns a profit of ₹ 8 per bag of white cement sold and a loss of
|
|
1
|
1354
|
April 8, 2019
|
|
In a class test containing 10 questions, 5 marks are awarded for every correct answer
|
|
1
|
2462
|
April 8, 2019
|
|
A certain freezing process requires that room temperature be lowered from 40°C
|
|
1
|
2422
|
April 8, 2019
|
|
Find the product, using suitable properties: (a) 26 × (- 48) + (- 48) × (- 36)
|
|
1
|
11449
|
April 8, 2019
|
|
Starting from (- 1) × 5, write various products showing some pattern to show (- 1) × (-1) – 1
|
|
1
|
1851
|
April 8, 2019
|
|
(i) For any integer a, what is (-1)×a equal to? (ii) Determine the integer whose product with (- 1) is
|
|
1
|
976
|
April 8, 2019
|
|
Verify the following: (a) 18 × [7 + (- 3)] = [18 × 7] + [18 × (- 3)]
|
|
1
|
2904
|
April 8, 2019
|
|
Find each of the following products: (a) 3 × (- 1)
|
|
1
|
8413
|
April 8, 2019
|
|
Fill in the blanks to make the following statements true:
|
|
1
|
1882
|
April 8, 2019
|
|
In a quiz, team A scored – 40, 10,0 and team B scored 10, 0, – 40
|
|
1
|
572
|
April 8, 2019
|
|
(a) Write a pair of negative integers whose difference gives 8
|
|
1
|
1285
|
April 8, 2019
|
|
Write down a pair of integers whose:
|
|
1
|
2885
|
April 8, 2019
|
|
A water tank has steps inside it. A monkey is sitting on the topmost step
|
|
1
|
2100
|
April 8, 2019
|
|
Use the sign of >, < or = in the box to make the statements true. (a) (- 8) + (-4) …… (- 8) – (- 4)
|
|
1
|
3111
|
April 8, 2019
|
|
Verify a – (- b) = a + b for the following values of a and b. (i) a = 21, b = 18
|
|
1
|
3230
|
April 8, 2019
|
|
In a magic square each row, column and diagonal have the same sum
|
|
1
|
3277
|
April 8, 2019
|
|
Rita goes 20 km towards east from a point A to the point B. From B,
|
|
1
|
2003
|
April 8, 2019
|
|
Mohan deposits ₹ 2,000 in his bank account and withdraws ₹1,642 from it, the next day
|
|
1
|
1718
|
April 8, 2019
|
|
A plane is flying at the height of 5000 m above the sea level
|
|
1
|
1623
|
April 8, 2019
|