Page 39 - ICSE Math 4

Progress Worksheet

Mental Maths

1. Represent the following numbers as the sum of two number in four ways.
(a) 950 (b) 1,000 (c) 1,200

2. Match the addi on problems with their sums.
Column A Column B

(a) 2,598 + 3,000 (i) 7,000

(b) 5,500 + 3,500 (ii) 5,598
(c) 2,200 + 3,500 + 2,100 (iii) 9,000

(d) 4,000 + 3,000 + 1,000 (iv) 7,800

(e) 2,300 + 4,500 + 200 (v) 8,000

3. Add the given numbers.

(a) 2,345 + 972 (b) 1,700 + 2,350 (c) 3,890 + 1,225 + 972

Solve and Answer

4. Find the missing digits.

(a) Th H T O (b) Th H T O (c) Th H T O

? ? 7 0 5 ? 9 4 1 ? 9 ?

+ 8 2 3 ? + 1 4 ? 9 + ? 9 9 9
1 0 9 ? 4 ? 2 5 3 1 1 9 ? 7

5. Solve the following word problems.

(a) For the birthday party of his son, Mr Sharma spent ` 7,600 on food; ` 2,750
on arrangements and decora on, and ` 6,270 on return gi s. How much did
Mr Sharma spend for the party?

(b) An NGO collected ` 5,528 in one month and ` 5,627 in the next month for
poor people. How much and the NGO collect in the two months?

(c) A ballot box contains 2,545 votes for Aam Party; 1,738 votes for Hindustan Party
and 798 votes for Jan Shak Party. How many votes are there in the ballot box?
Calculate using es ma on method by rounding off to the nearest 100.

29