CBSE Class 3 Mathematics Revision Worksheet Set 10

Ex-9 ( Word Problem )

2) Solution -                      1 1 1 .
Total Expenditure -- Rs   7 3 8 5 . .
Saving --                     + Rs1 8 9 5 . .
Total lncome -- Rs               9 2 8 0
Ans - Their monthly income is Rs 9 2 8 0 .

4) Solution - .
No of men -- 4 5 0 8 .
. No of women -- 2 9 8 7 .
. No of children -- 1 3 9 5 .
Ans - The total population of the village is Rs 9 2 8 0 .

6) Solution - 2 2 2
1st day of the week -- 2 3 8 4
2nd day of the week -- 3 5 3 8
3rd day of the week -- 1 8 3 5
4th day of the week -- + 6 7 9
                                       ______
Total visitors -- 8 4 3 6
Ans - The total number of the visitors during the week is 8436 .

8) Solution - 1 1 1
. No is - 6 8 9 7
. Exceeds by + 2 4 7 8_
. No is - 9 3 7 5
Ans - That number is 9375 .

10) Solution - 1 1 1
. Cost of bicycle -- rs 1 7 6 5
. Cost of music system -- + rs 6 3 5 6
Actual Cost of music system -- rs 8 1 2 1
Ans - Actual Cost of music system is rs 8 1 2 1

12) Solution - 2 2 2
. Eggs produced on 1st day -- 1 6 3 9
. Eggs produced on 2nd day -- 2 5 7 8
Eggs produced on 3rd day -- 1 4 5 6
Eggs produced on 4th day -- 9 9 5
Total eggs produced are - 6 6 6 8
Ans - Total eggs produced are - 6668 .

Note: Do rest of the sums of this exercise of your own in the notebook

Question 1. Identify the next three patterns.
a.
________     ________     ________
b. 100 90 80 70 ____ ____ ____.
Answer:
a. The next three shapes in the pattern are:
b. 60, 50, 40
In simple words: For the first part, copy the repeating shapes in order [concentric circles, concentric circles, arch]. For the second part, keep subtracting 10 to find the next numbers.

Exam Tip: Always look closely to find the small group of shapes or numbers that repeats before filling in the blanks.

Question 2. Identify the number of sides in the following figures:

Answer:
- First shape (Triangle): 3 sides
- Second shape (Rectangle): 4 sides
In simple words: The first shape has 3 sides because it is a triangle. The second shape has 4 sides because it is a rectangle.

Exam Tip: Point and count each straight line on the shape with your pencil to avoid making simple counting mistakes.

Question 3. Write ‘S’ if the image is symmetrical and NS if the image is not symmetrical.
[Image of a book]
[Image of earmuffs]
Answer:
- Book image: NS
- Earmuffs image: S
In simple words: Symmetrical means both sides of the picture are exactly the same. The book is not symmetrical, but the earmuffs are the same on both sides.

Exam Tip: Imagine folding the picture down the middle. If the two halves do not match up perfectly, write NS.

Question 4.i. Edges: __________?
(a) 0
(b) 2
(c) 1
(d) 3
Answer: (a) 0
In simple words: An oval is a flat curved shape and has no straight sides or edges, so the answer is 0.

Exam Tip: Remember that in basic 2D geometry, only shapes with straight line segments have edges.

Question 4.ii. 1 3 6 10 15 _____?
(a) 21
(b) 19
(c) 11
(d) 25
Answer: (a) 21
In simple words: The numbers go up by adding 2, then 3, then 4, then 5, and finally 6. Adding 6 to 15 gives 21.

Exam Tip: Write down how much the numbers increase each time to easily spot a growing pattern.