CBSE Class 4 Maths Smart Charts Worksheet

Competency : Ability to Compute

There are 160 people in an apartment. The different newspaper they read is represented in this chapatti chart:

Observe the chart and write

Question 1. Which newspaper is read the most?
Answer: The Hindu
In simple words: The Hindu covers half of the total circular chart, meaning it has the largest share of readers.

Exam Tip: Look at the size of each section in a pie chart or chapatti chart to quickly identify the largest and smallest categories.

Question 2. Which newspaper is read the least?
Answer: Deccan Herald
In simple words: Deccan Herald occupies the smallest portion (one-fourth) of the entire chart.
Exam Tip: The smallest slice or sector always represents the least frequency or quantity.

Question 3. Find the total number of newspapers read by all?
Answer: Total people in the apartment = 160
Each person reads one newspaper.
Total number of newspapers read = 160
In simple words: Since there are 160 people and each reads a newspaper represented in the chart, the total number of newspapers is equal to the total number of people.
Exam Tip: Read the introductory sentence carefully; total people often equal the sum of all individual data categories in survey charts.

2. Observe this chart and answer. \(1 \triangle = 4\) children

Question a) Number of children who like red colour = 12
Answer: Number of triangles for red colour = 3
Value of each triangle = 4 children
Number of children = \(3 \times 4 = 12\)
In simple words: Multiply the number of triangle symbols in the red column by 4.
Exam Tip: Always check the scale key given at the top of pictographs before counting and calculating.

Question b) Number of children who like blue colour: 16
Answer: Number of triangles for blue colour = 4
Value of each triangle = 4 children
Number of children = \(4 \times 4 = 16\)
In simple words: Multiply 4 triangles by the scale value of 4 to get 16 children.
Exam Tip: Count carefully and verify that each symbol corresponds strictly to the given key value.

Question c) Total number of students: 44
Answer: Total number of triangles across all colours = \(3 + 4 + 3 + 1 = 11\) triangles
Total number of students = \(11 \times 4 = 44\)
In simple words: Count all triangles in the entire chart and multiply by 4, or add the students of all individual colours (\(12 + 16 + 12 + 4 = 44\)).
Exam Tip: You can either sum the individual totals or count all symbols first and multiply by the scale factor as a double-check method.

Quesrion. How many spoilt apples are there in the basket?

(a) 1
(b) 2
(c) 3
(d) 6

Answer : B

Quesrion. Look at the pictograph.
What is the total number of saplings planted by Kabir and Samuel?

(a) 16
(b) 20
(c) 32
(d) 40

Answer : D

Quesrion. In how many months during this period did the club use  more than 60 balls?

(a) One
(b) Two
(c) Three
(d) Four

Answer : A

Quesrion. What was the total number of balls used by the club in the period September to December 2001?

(a) 300
(b) 105
(c) 210
(d) 220

Answer : C

Quesrion. Which show was liked by most GIRLS in the class?

(a) Pokemon
(b) Scooby Doo
(c) Tom and Jerry
(d) Noddy

Answer : D

Quesrion. How many BOYS chose Pokemon?

(a) 1
(b) 2
(c) 4
(d) 5

Answer : C

Quesrion. How many more children visited the fair on the last day than on the first?
A 4-day Fun-Fair was held in the lawns of Nisha's school  during the holidays. The picture graph shows the number of children who visited the Fun-Fair on different days. Look at it and answer the question. 

(a) 3
(b) 30
(c) 50
(d) 150

Answer : D

Quesrion. How many buses were counted before 9 o'clock?

(a) 100
(b) 80
(c) 18
(d) 8

Answer : B

Quesrion. How many more buses passed by between 8 and 10 o'clock than between 10 and 12 o'clock?

(a) 10
(b) 20
(c) 100
(d) 120

Answer : C

Quesrion. Nisha went to the fair the day the greatest number of children visited it. On which day did she go?
A 4-day Fun-Fair was held in the lawns of Nisha's school  during the holidays. The picture graph shows the number of children who visited the Fun-Fair on different days. Look at it and answer the question. 

(a) Thrusday
(b) Friday
(c) Saturday
(d) Sunday

Answer : C

Quesrion. Manu had 5 spelling tests in a month. On each test, he scored 4 points more than the previous one. If he scored 42 points on Test 5, how much did he score on Test 1?

(a) 26
(b) 30
(c) 38
(d) 58

Answer : A

Competency :-Understanding Basic Concepts

See the Chapati chart and answer the questions given below:

a) How many children like Ice cream?
(i) One – third (ii) One – fourth (iii) Three- fourth

b) How many like Milk Shake?
i) One – third (ii) Half (iii) One fourth

c) Which item are liked by equal number?
(i) Milk shake and Juice (ii) Milk shake and Ice cream
(iii) Ice- cream and Juic

d) If total numbers of children are 405 then tell the number of children like: Ice – cream (ii) Milk shake (iii) Juice

Competency : Ability to Compute

1. Number of balls sold by a shop on 6 days of a week. : Monday 17, Tuesday 12, Wednesday 20, Thursday 15, Friday 5 and Saturday 11.

1) How m any balls were sold on all the 6 days?

2) On which day the balls were sold more?

3) On which day less number of balls were sold?

4) How many balls were sold on Saturday than Friday ?

5) Number of balls sold on Thursday is thrice the number sold on Friday True/False

Competency : Ability to Compute

1. The Number of loaves of bread baked in a bakery in four different months of a year are given below. Each picture represents 100 loaves.
January :   BREAD       BREAD       BREAD 
February : BREAD       BREAD       BREAD       BREAD
March :     BREAD       BREAD       BREAD
April :        BREAD       BREAD

Answer the following questions:

1) Name the months in which the number of loaves baked was the same?

2) How many loaves were baked in January ?

3) In which month the number of loaves baked was minimum ?

4) What is the number of loaves baked in all the four months?

5) How many loaves were baked in March ?