Page 50 - ICSE Math 4

Progress Worksheet

Mental Maths

1. Tick () the correct answer.

(a) 1,237 – 524 = ________
(i) 173 (ii) 713 (iii) 317 (iv) 371

(b) 2,478 – 852 = ________
(i) 1,622 (ii) 1,266 (iii) 2,166 (iv) 1,626
(c) 3,579 – 3,468 = ________

(i) 211 (ii) 212 (iii) 111 (iv) 110
Solve and Answer

2. Solve the following.
(a) 365 + 268 – 342 (b) 439 – 140 + 360 (c) 1,653 + 5,782 – 372

3. Find the missing digits.

(a) Th H T O (b) Th H T O (c) Th H T O
7 1 ? 9 5 3 5 4 ? ? 7 0

+ ? ? 3 ? + ? 2 ? 9 – 8 1 3 ?

2 9 4 4 2 ? 5 ? 1 4 ? 4

4. Subtract using the expanded form.

(a) Th H T O
Thousands Hundreds Tens Ones
7 3 9 5

– 6 3 6 4

(b) Th H T O
Thousands Hundreds Tens Ones
5 8 7 9

– 4 5 3 4

5. Solve the following word problems.

(a) A water supplier had 750 litres of water. He sold 500 litres in a locality. How
much quan ty of water is he le with?
(b) Mrs Ana had ` 9,450 in her savings account. She invested ` 4,540 in a fi xed
deposit. How much money is there in her account now?

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