CHAPTER - 3
SUBTRACTION
Chapter III
Subtraction Recap
Q2: Arrange in columns and subtract.
(a) 7345 - 4563 (b) 2300 - 1800 (c) 8773 - 1234 (d) 9856 – 355 (e) 5639 - 2253 (f) 6758 - 123 (g) 2875 - 876 (h) 6783 – 3211
Solution:
(a) 7 3 4 5 (b) 2 3 0 0 (c) 8 7 7 3 (d) 9 8 5 6 - 4 5 6 3 - 1 8 0 0 - 1 2 3 4 - 3 5 5
2 7 8 2 5 0 0 7 5 3 9 9 5 0 1 (e) 5 6 3 9 (f) 6 7 5 8 (g) 2 8 7 5 (h) 6 7 8 3 - 2 2 5 3 - 1 2 3 - 8 7 6 - 3 2 1 1 3 3 8 6 6 6 3 5 1 9 9 9 3 5 7 2
Exercise 3.1 Q1: Arrange the numbers in columns and subtract.
(a) 7654 - 3243 (b) 97205 - 3426 (c) 28976 – 1167 (d) 45780 – 34271 (e) 26754 – 23842 (f) 87646 – 6524 (g) 43791 – 23448 (h) 50408 – 3412
(i) 756320 – 347980 (j) 932447 – 876125 (k) 78654 – 70430 (l) 874506 - 401228
Solution:
(a) 7 6 5 4 (b) 9 7 2 0 5 (c) 2 8 9 7 6 (d) 4 5 7 8 0 - 3 2 4 3 - 3 4 2 6 - 1 1 6 7 - 3 4 2 7 1 4 4 1 1 9 3 7 7 9 2 7 8 0 9 1 1 5 0 9
(e) 2 6 7 5 4 (f) 8 7 6 4 6 (g) 4 3 7 9 1 (h) 5 0 4 0 8 - 2 3 8 4 2 - 6 5 2 4 - 2 3 4 4 8 - 3 4 1 2 2 9 1 2 8 1 1 2 2 2 0 3 4 3 4 6 9 9 6
(i) 7 5 6 3 2 0 (j) 9 3 2 4 4 7 (k) 7 8 6 5 4 (l) 8 7 4 5 0 6 - 3 4 7 9 8 0 - 8 7 6 1 2 5 - 7 0 4 3 0 - 4 0 1 2 2 8 4 0 8 3 4 0 5 6 3 2 2 8 2 2 4 4 7 3 2 7 8
Exercise 3.3
Q1: Sushma placed………were there ?
Solution:
Total number of yellow and white flower = 15,775 Number of yellow flower = 9,455 Number of white flower = ?
Number of white flower = 15,775 – 9,455 Answer = 6,320
Q2: The difference………other number?
Solution:
Difference between two numbers = 75,894 Number that was subtracted = 2,35,675 Other number = ?
Other number = 2,35,675 + 75,894 Answer = 3,11,569
Q3: There were……….were vacant?
Solution:
Number seats in an indoor stadium = 2,255 Number of people came to stadium = 1,975 Number of seats vacant = ?
Number of seats vacant = 2,225 – 1,975 Answer = 250
Q4: 28,485 apples………...good condition?
Solution :
Number of apples packed into cartons = 28,485 Number apples found rotten = 2,445
Number of apples found in good condition = ?
Number of apples found in good condition = 28,485 – 2,445 Answer = 26,040
Q5 : A library ……….in the library?
Solution :
Number of books in a library = 3,975 Number books took away by 8th standard = 120 books Number books took away by 9th standard = 95
Number book left in library = ?
Number book left in library = 3,975 – (120 + 95) = 3,975 - 215
Answer = 3,760 books
Q6 : 5,075 sheets………are left ?
Solution:
Number of papers used from a pile = 5,075 Number of papers in a pile = 9,600 Papers left in the pile = ?
Papers left in the pile = 9,600 -5,075 Answer = 4,525
Q7 : 1,344 cans………..are left?
Solution :
Number of health drinks in cartons = 1,344 Number of cans given for children on sports day function = 1,275 Number of cans left = ?
Number of cans left = 1,344 -1,275 Answer = 69 cans
Q8 : 5,360 white………the floors?
Solution :
Number of white tiles = 5,360 Number of blue tiles = 2,225 Number of tiles left = 399 Number of tiles used to make the floors = ?
Number of tiles used to make floor = (5,360+2,225) – 399 = 7,585 - 399
Answer = 7,186
Q9 : A shopkeeper………..he sold?
Solution:
Number of candles boxes shopkeeper ordered for Diwali = 2,500 Number of boxes left after Diwali = 87 Number of boxes sold on Diwali = ?
Number of boxes sold on Diwali = 2,500 – 87 Answer = 2,413
Q10 : Subtract the sum ………..………25,971.
Solution:
Sum of numbers = (3,23,667 + 47,208) = 3,70,875
Sum of numbers = (5,76,004 + 25,971) = 6,01,975
Subtracting the sums = 6,01,975 – 3,70,875 Answer = 2,31,100
Exercise 3.4
Q2: Subtract the following and verify the answer showing the step wise working in your notebook.
(a) 46573 from 576937 (b) 8478 from 94579 (c) 74589 from 125634 (d) 858 from 457635 (e) 48541 from 576836
Solution :
Verify:
(a) L TTh Th H T O L TTh Th H T O 5 7 6 9 3 7 5 3 0 3 6 4
- 4 6 5 7 3 + 4 6 5 7 3 5 3 0 3 6 4 5 7 6 9 3 7 Verify:
(b) TTh Th H T O TTh Th H T O 9 4 5 7 9 8 6 1 0 1
- 8 4 7 8 + 8 4 7 8 8 6 1 0 1 9 4 5 7 9 Verify:
(c) L TTh Th H T O L TTh Th H T O 1 2 5 6 3 4 5 1 0 4 5
- 7 4 5 8 9 + 7 4 5 8 9 5 1 0 4 5 1 2 5 6 3 4 Verify:
(d) L TTh Th H T O L TTh Th H T O 4 5 7 6 3 5 4 5 6 7 7 7
- 8 5 8 + 8 5 8 4 5 6 7 7 7 4 5 7 6 3 5 Verify:
(e) L TTh Th H T O L TTh Th H T O 5 7 6 8 3 6 5 2 8 2 9 5
- 4 8 5 4 1 + 4 8 5 4 1 5 2 8 2 9 5 5 7 6 8 3 6
Review Time
Q4: A caterer………..nearest tens.
Solution:
Number of guests expecting in morning = 2,175 Number of guests expecting in afternoon = 2,965 Number of bottles to be arranged = ?
Number of bottles to be arranged = 2,175 + 2,965 Answer = 5,140
Q5:The diameter ………..nearest hundreds?
Solution:
The diameter of the Earth = 12,742 Km The diameter of the Jupiter =1,39,822 Km Difference between the diameter of the two planets = ?
Difference between the diameter of the two planets = 1,39,822 – 12,742 = 1,27,080 Km
Answer (in nearest hundreds) = 1,27,100 Km
Q6 : The area………191791 sq. Km.
Solution :
Area of Kerala = 38,863 sq. Km Area of Tamil Nadu = 1,30,058 sq. Km Area of Karnataka = 1,91,791 sq. Km Sum of area of Kerala and Tamil Nadu = 38,863+1,30,058 = 1,68,921 sq. Km Difference between the sum of areas of
Kerala and Tamil Nadu and the area of Karnataka = 1,91,791-1,68,921 = 22,870 sq. Km
Answer = Twenty two thousand eight hundred seventy
Q7 : Ram had………with him?
Money Ram had in his purse = Rs. 15,000 Cost of shirts = Rs. 6,500 Cost of trousers = Rs. 5,000 Money left in his purse = ?
Money left in his purse = 15,000 – (6,500+5,000) = 15,000 – 11,500
Answer = Rs. 3,500
Q8 : A painter………..short of ?
Solution :
Number of cans a painter need to paint a building = 10,000 Number of cane he has = 6,587 Number cans he can borrow from his friend = 339 Number of cans he still short of = ?
Number of cans he still short of = 10,000 – (6,587 + 239) = 10,000 – 6,826
Answer = 3,174
Q9 : What will……….from 7,89,887?
Solution :
Sum of the numbers = 3,64,657 + 7,573 = 3,72,230
Difference between the numbers = 7,89,887 – 3,72,230 Answer = 4,17,657
Q10: Which is ………...by how much?
Solution :
Sum of numbers = (10,232 + 5,987) = 16,219 Difference between the numbers = (20,023 – 17,899) = 2,124
Sum is greater by = 16,219 – 2,124 = 14,095
