Find the greatest and the smallest numbers. 6895, 23787, 24569, 24659.

Who is the tallest? Who is the shortest?
(a) Can you arrange them in the increasing order of their heights?
(b) Can you arrange them in the decreasing order of their heights?

Medicine is packed in boxes, each weighing 4 kg 500 g. How many such boxes can be loaded in a van which cannot carry beyond 800 kg?

The monthly fee for a student in a school is Rs.480. If there are 620 students in the school. Then, find the total monthly collection of fees.

The distance between the park and the house of a student is 2 km 260 m. Every day he walks both ways between the parks and his house. Find the total distance covered by him in a week's time.

Find the value of the following:
(i) 175 x 17 + 175 x 25
(ii) 207 x 80 + 207 x 20.

Try to form a polygon with
(i) five matchsticks.
(ii) four matchsticks.
(iii) three matchsticks.
(iv) two matchsticks.
In which case was it not possible? Why?

Draw five other situations of one-fourth, half and three-fourth revolution on a clock.

Mark -3, 7, -4, -8, -1 and 3 on the number line.

Going up and down
In Mohan's house there are stairs for going up to the terrace and for going down to the godown.
Let us consider the number of stairs going up to the terrace as positive integer, the number of stairs going down to the godown as negative integer, and the number representing ground level as zero.

Do the following exercise and write down the answer as integer:
(a) Go 6 steps up from the ground floor.
(b) Go 4 steps down from the ground floor.
(c) Go 5 steps up from the ground floor and then go 3 steps up further from there.
(d) Go 6 steps down from the ground floor and then go down further 2 steps from there.
(e) Go down 5 steps from the ground floor and then move up 12·steps from there.
(f) Go 8 steps down from the ground floor and then go up 5 steps from there.
(g) Go 7 steps up from the ground floor and then 10 steps down from there.
Ameena wrote them as follows:
(a)+6
(b)-4
(c) (+ 5) + (+ 3) = + 8
(d) (-6) + (-2) =-4
(e)(-5)+(+12)=+7
(f)(-8) +(+5)=-3
(g) (+ 7) + (-10) = 17
She has made some mistakes. Can you check her answers and correct those that are wrong?

Draw a figure on the ground in the form of a horizontal number line as shown below. Frame questions as given in the above example and ask your friends.

Few questions framed are as follows:
1. Go 4 steps to the right of o.
2. Go 5 steps to the left of o.
3. Go 6 steps to the right of 0 and then go 4 steps further from there to the left.
4. Go 5 steps to the left of 0 and then go 1 step further from there to the left.
5. Go 8 steps to the right of 0 and then go 6 steps further from there to the left.
6. Go 4 steps to the left of 0 and then go 3 steps further from there to the right.

A square is divided into certain number of equal parts. If 15 of the parts, so formed represent the fraction 1/5, find the number of parts in which the rectangle has been divided

Write the numbers given in the following place value table in decimal form.

The sale of electric bulbs on different days of a week is shown below

Observe the pictograph and answer the following questions.
(a) How many bulbs were sold on Friday?
(b) On which day, were the maximum number of bulbs sold?
(c) On which of the days, same number of bulbs were sold?
(d) On which of the days, minimum number of bulbs were sold?
(e) If one big carton can hold 9 bulbs. How many cartons were needed in the given week?

The sale of cars of Maruti Udhyog in the city of Delhi from January to June in a year are as follows:
Take = 50 cars.

Represent them as a pictograph.

Length of a rectangular field is 250 m and width is 150 m. Anuradha runs around this field 3 times. How far did she run? How many times she should run around the field to cover a distance of 4 km?

The perimeter of a regular hexagon is 72 cm How long is its each side?

The area of a rectangle is 40 cm². If its length is (2k - 5) cm and its breadth is 8 cm. Then, find the value of k. 

There are 20 girls and 15 boys in a class.
(a) What is the ratio of number of girls to the number of boys?
(b) What is the ratio of number of girls to the total number of students in the class?

If it rained 40 cm in the last 8 days. How many centimetres of rain will fall in a month of 31 assuming that the rain continues to fall at the same, rate?