If r and t are two integers such that r is the successor of t, then what is the value of r - t - 1?

Find the value of (–57) × (–19) + 57

Find the value of the following expression: 33 – ( - 27 ) + ( 131 ) – ( 25 ) + ( - 46 ) + 2

In an examination which has questions worth 100 marks Iqbal scores 54 marks while Pradip loses 32 marks in his paper. What is the ratio of the marks of Iqbal to that of Pradip?

Find the value of 25 – 48 ÷ 6 + 12 × 2

Natural numbers are closed under subtraction.

Gautam solved the problem as shown below. Which expression could be used to check her result?

Find the value of 15 × (–25) × (– 4) × (–10)

If the sum of two numbers is -12. If one of them is 18, find the other number?

_________ is a factor of every number.

Which no. is neither prime nor composite?

A square park is surrounded by 1cm wide path. If area of the path is 136 sq cm, find the area of the park.

A room is 4.5 m long and 4 m wide. The floor of the room is to be covered with tiles of size 18 cm by 10 cm. Find the cost of covering the floor with tiles at the rate of ₹ 4.50 per tile.

Which of the following pairs is not coprime?

The HCF of two consecutive numbers is

The HCF of two consecutive even numbers is

Which sign will come in the blank space? – 231 + 79 + 51 _________–399 + 159 + 81

4 bells ring at intervals of 8, 60, 36, 20 seconds, respectively. If the bells ring together at 10 o'clock,when will they ring together again?

Find the value of (-44+4) / (-37+37)