# Important Questions for CBSE Class 7 Mathematics/Integers – Chapter 1

**Important Questions for CBSE Class 7 Mathematics/Integers – Chapter 1Extra Questions for Practice/Model Questions**

**Fill in the blanks:**

a) (-18) + 0 = —–

b) (-3) + (-9) = —–

c) (-24) + 24 = —–

d) (-21) – (-20) = ————-

e) 20 – (-21) = ———**Write down a pair of integers for the following:**

a) Sum gives -5

b) Difference gives -3**Find the product of:**

a) (-3) x 0 x 5

b) (-1) x (-1) x (-1)

c) (-2) x (-6) x (-1)**In a game team A scored 10, -20, 30 and team B scored -30, 20, 10.Who scored more and by how much?****Find the product using suitable properties:**

a) 14 x (-20) + (-20) x (-24)

b) 2 x (-54) x (-50)**Determine an integer whose product with (-1) gives ——-**

a) (-24)

b) 0

c) 24**Divide 256 by (-16)****Write all integers in between -4 and 4.****Find:**

a) [10 + (-2)] x 5

b) [2- (-5)] x 10**Write the opposite of:**

a) Deposit of 500 rupees

b) Going South

c) 5 degree Celsius below zero.**Write the property used here:**

a) 12 x (10 x (-3)) = (12 x 10) x (-3)

b) 12 + (-34) = (-34) + 12

c) 12 x (10 + (-3)) = 12 x 10 + 12 x (-3)**Fill in the blanks:**

a) —- x (-1) = -25

b) 23 x —- = -23

c) —– x (-21) = 21

**Solution:**

**a) -18**

b) -12

c) 0

d) (-21) + 20 = -1

e) 20 + 21 = 41**a) (-3) + (-2) = -5**

b) 1 – 4 = 1 + (-4) = -3**a) 0**

b) -1

c) -12**Score of Team A = 10 + (-20) + 30 = 40 + (-20) = 20**

Score of Team B = (-30) + 20 + 10 = (-30) + 30 = 0

Team A scored more by 20.**a) 14 x (-20) + (-20) x (-24) = (-20) [14 + (-24)] = (-20) x (-10) = 200**

b) 2 x (-54) x (-50) = [2 x (-50)] x (-54) = (-100) x (-54) = 5400**a) (-1) x (-24) = 24**

b) (-1) x 0 = 0

c) (-1) x 24 = -24**-16****Integers between -4 and 4 are -3, -2, -1, 0, 1, 2, 3.****a) [10 + (-2)] x 5 = 8 x 5 = 40**

b) [ 2 – (-5)] x 10 = (2 + 5) x 10 = 7 x 10 = 70**a) Withdrawal of 500 rupees**

b) Going North

c) 5 Degree Celsius above zero**a) Associative property**

b) Commutative property

c) Distributive property**a) 25**

b) -1

c) -1