RBSE Class 3 Maths We Learnt and Understood-3 Solutions

Regular practice of RBSE Class 3 Maths Solutions We Learnt and Understood-3 Question Answer sharpens your problem-solving skills.

RBSE Class 3 Maths We Learnt and Understood-3 Question Answer

Question 1.
A number has 2 in the hundreds place, 5 in the tens place and 8 in the unit place. Write the number.
Solution :

So, the number is 258.

Question 2.
Which is the biggest 2-digit number?
Solution :
The biggest two digit number is 99.

Question 3.
Which number is bigger 999 or 989?
Solution :
989 + 10 = 999
Therefore, 999 is bigger.

Question 4.
Which is the biggest 3-digit number?
Solution :
Number 999 is the biggest 3-digit number.

Question 5.
Which is the smallest 3-digit number?
Solution :
The smallest three digit number is 100.

Question 6.
Which number is smaller 100 or 99?
Solution :
99 is 2-digit number. 100 is 3-digit number

The number 99 is smaller.

Question 7.
Which number is smaller 100 or 101?
Solution :

The hundreds and tens digits in both numbers are same. But unit digit in 100 is smaller than unit digit in 101. So, the number 100 is smaller.

Question 8.
Which number is smaller 100 or 999?
Solution :
The hundreds digit in 100 is 1 and hundreds digit in 999 is 9. Both are 3-digit numbers. So, the number 100 is smaller.

Question 9
Which object has more length-a pencil or eraser?
Solution :
A pencil has more length.

Question 10.
Which object has shorter lengtha table or bench?
Solution :
A table has shorter length.

Question 11.
Which of these objects is the longest-a pencil, pen or book?
Solution :
Book is the longest among a pencil, pen or book.

Question 12.
If the length of one pencil is equal to 15 sharpeners, then the length of two pencils will be equal to how many sharpeners?
Solution :
Length of 1 pencil
= Length of 15 sharpeners
∴ Length of 2 pencils = 15 + 15
= Length of 30 sharpeners

Question 13.
If the length of one book is equal to 2 pencils, then the length of three books will be equal to how many pencils?
Solution :
Length of 1 book = length of 2 pencils
∴ length of 3 books = 3 × 2
= 3 times 2
= 2 + 2 + 2 = 6
= length of 6 pencils

Question 14.
A bus has to cover a distance of 15 kilometers. If it has already covered a distance of 8 kilometers, then how much more distance is left to cover?
Solution :
More distance is left to cover
= Total distance – distance already covered
= 15 km – 8 km
= 7 km

Question 15.
The length of a pencil is 15 cm. If it is cut by 3 centimeters, then what will be its remaining length?
Solution :
Remaining length
= Length of the pencil – length of part which is cut-off
= 15 cm – 3 cm
= 12 cm

Question 16.
The length of a paper is 25 cm. If 5 centimeters is cut off from it, then what will be its remaining length?
Solution :
Remaining length
= Length of paper – length cut-off
= 25 cm-5 cm
= 20 cm

Question 17.
A boy plays from 5 PM to 7
PM. Tell for how long does he play?
Solution :

Therefore, Boy plays for 2 hours.

Question 18.
A girl studies from 9 AM to 11 AM. Tell for how long does she study?
Solution :

So, the girl studies for 2 hours.

Question 19.
The weight of a bag is 5 kgs. If 2 kgs of items are added more to it, then what will be the total weight of the bag?
Solution :

So, the total weight of the bag is 7 kilogram.

Question 20.
The weight of box is 15 kgs. If 5 kgs of items are added more to it, then what will be the total weight of the box?
Solution :

So, the total weight of the bag is 20 kilogram.

Question 21.
If the length of a piece of wood is 300 centimeters, then what will be its length in meters.
Solution :
100 centimeter = 1 meter
∴ 300 centimeter = \(\frac{300}{100}\) = 3 meter

Question 22.
The length of a table is 100 centimeters, what will be its length in meters?
Solution :
Length of the table =100 centimeter
We know that 1 meter =100 centimeter
Threfore, the length of table in meters is 1 meter.

Question 23.
If the length of a room is 5 meters, then what will be its length in centimeters?
Solution :
1 meter = 100 centimeter
∴ 5 meter = 5 × 100 centimeter
= 100 + 100 + 100 + 100
= 500 centimeters

Question 24.
Which length is greater-30 centimeters or 3 meters?
Solution :
3 meter = 3 × 100 centimeter
= 300 centimeter
So, length of 3 meter is greater than 30 centimeters length.

Question 25.
Which length is greater-120 centimeters or 1 meter?
Solution :
∵ 1 meter =100 centimeter
So, 120 centimeter length is greater than 1 meter length.

Question 26.
Match the following-

Solution :

Question 27.
Identify the shape-
1. I have a circular base, one vertex, and no edges- _____
Solution : Cone

2. I am a closed figure with three sides- _____
Solution : Triangle

3. I have eight corners and all the edges are of equal length _____
Solution : Cube

Question 28.
Name three objects that resemble the following-
1. Rectangle = _____ , _____ , _____.
Solution :
Rectangle – Tennis court, notice board, wall.

2. Square = _____ , _____ , _____.
Solution :
Square – Chess board, craft paper, photo frame.

3. Triangle = _____ , _____ , _____.
Solution :
Triangle – Pizza slice, arrow head, nachos chips.