Page 57 - monopoly

(ii) Now, we do the subtraction.
Th H T O

Number of red black and green marbles = 4 8 9 0
Total number of red and black marbles = – 3 6 1 0

1 2 8 0
Thus, the number of green marbles = 1280

MENTAL MATHS-7

Solve the problems

(a) Julia bought 1825 lemons on one day and 1275 lemons on the next day.

She made pickles of 2358 lemons. How many lemons are left?

(b) In a school library there are 1453 English books, 1356 Science books and

1425 Maths books. Out of these books 1864 books were issued to
students. Find the number of books left in the library.

(c) The population of a village is 8345. If the number of men and women are
3456 and 3378 respectively. Find the number of children in the term.

(d) 1236 people went to a circus in the afternoon show and 1478 went for the

evening shows. In all 4003 tickets were sold for the day for the three
shows. Find the number of people who went for the night show of the

circus.

SUBTRACTION OF TENS/HUNDREDS/THOUSANDS

Subtract tens, hundreds and thousands like ones.

7 – 3 = 4
13 – 8 = 5

70 – 30 = 40
130 – 80 = 50
700 – 300 = 400

1300 – 800 = 500
7000 – 3000 = 4000

57
Subtraction
Mathematics-3